October Morning 2026

On this page 74 sections
Overall subject-wise MCQ distribution

Complete breakdown

| Subject | MCQs | % of 184 |
|---|---|---|
| Dental Materials | 23 | 12.5% |
| Neurology | 17 | 9.8% |
| Oral & Maxillofacial Surgery | 12 | 6.5% |
| Oral Medicine | 12 | 6.5% |
| Endocrinology | 10 | 5.4% |
| Community Dentistry | 10 | 5.4% |
| Biochemistry | 10 | 5.4% |
| General Pathology | 9 | 4.9% |
| Operative Dentistry | 7 | 3.8% |
| Orthodontics | 7 | 3.8% |
| Oral Pathology | 7 | 3.8% |
| Sterilization & Disinfection | 5 | 2.7% |
| Nephrology | 5 | 2.7% |
| Hematology | 5 | 2.7% |
| Pharmacology | 5 | 2.7% |
| Oral Biology | 4 | 2.2% |
| Oral Morphology | 4 | 2.2% |
| Paedodontics | 3 | 1.6% |
| Cell Physiology | 3 | 1.6% |
| Cardiovascular | 3 | 1.6% |
| Pulmonology | 3 | 1.6% |
| Immunology | 3 | 1.6% |
| Oral Histology | 2 | 1.1% |
| Radiology | 2 | 1.1% |
| Gastroenterology | 2 | 1.1% |
| Histology | 2 | 1.1% |
| Prosthodontics | 1 | 0.5% |
| Periodontology | 1 | 0.5% |
| Embryology | 1 | 0.5% |
| Ethics | 1 | 0.5% |
| Total | 184 | 100% |

Most frequently tested topics
Paper A
| Subject | MCQs | Topics appearing in the recalls |
|---|---|---|
| Cell Physiology | 3 | Facilitated diffusion, CO₂ exchange, neuronal hyperkalaemia |
| Cardiovascular | 3 | Echocardiography, cardiac biomarkers, coronary blood flow |
| Gastroenterology | 2 | Peristalsis, hepatitis serology |
| Pulmonology | 3 | Lung injury, TB pathology, tuberculosis diagnosis |
| Nephrology | 5 | Acid-base balance, alkalosis, hyperaldosteronism, hyperventilation, renal tubular handling |
| Hematology | 5 | Intrinsic factor, B12, iron deficiency, coagulation factors, bleeding time |
| Endocrinology | 10 | Hypothyroidism, Graves disease, thyroid swellings, vitamin D metabolism, osteoporosis, calcium metabolism |
| Neurology | 18 | Cranial nerves, brainstem lesions, autonomic nerves, neuroanatomy, sensory pathways, neurological signs |
| General Pathology | 9 | Cell injury, necrosis, adaptive changes, exudates, keloids, Ehlers-Danlos |
| Immunology | 3 | Type II and IV hypersensitivity, immune complexes, IgE |
| Microbiology | 4 | PAS staining, botulism, diphtheria-related concepts, bacterial infections |
| Histology | 2 | Collagen synthesis, salivary gland histology |
| Biochemistry | 10 | Vitamins A and D, vitamin K, glutathione, proteins, oxalates, alkaloids, lactic acidosis |
| Pharmacology | 5 | Drug distribution, analgesics, antibiotics, local drug effects, pharmacological mechanisms |
| Embryology | 1 | First pharyngeal arch |
| Ethics | 1 | Confidentiality and patient autonomy |
Paper B
| Subject | MCQs | Topics appearing |
|---|---|---|
| Dental Materials | 23 | GIC, impression materials, gypsum, composites, amalgam, ceramics, waxes, mechanical properties |
| Operative Dentistry | 7 | Composite polymerisation, etching, restorative materials, SDF, caries management |
| Prosthodontics | 1 | Complete denture tooth selection |
| Paedodontics | 3 | Space maintenance, pulp exposure in primary teeth, child behaviour management |
| Orthodontics | 7 | Growth theories, relapse, growth centres, interceptive orthodontics, periodontal response to forces |
| OMFS | 12 | Impacted teeth, TMJ, IAN complications, local anaesthetic allergy/toxicity, fractures, osteoradionecrosis |
| Oral Medicine | 12 | Oral submucous fibrosis, syndromes, mucosal diseases, pigmentation, ulcers, ankylglossia, candidiasis |
| Oral Pathology | 7 | Ameloblastoma, odontogenic cysts/tumours, keratinising lesions, external root resorption |
| Community Dentistry | 10 | CPITN, epidemiology, study designs, screening, behaviour change, community diagnosis, mass media |
| Sterilization & Disinfection | 5 | Glutaraldehyde, autoclaving, chemical disinfectants, surface disinfection |
| Oral Biology | 4 | Tooth development stages, cleft lip and palate embryology |
| Oral Morphology | 4 | Third molar root development, tooth cusp anatomy, molar eruption, dental anatomy |
| Oral Histology | 2 | Tongue papillae, filiform papillae |
| Radiology | 2 | Bitewing vs periapical vs OPG, CBCT for cleft lip/palate |
| Periodontology | 1 | Sulcus fluid drainage |
Takeaways from this paper
A few things stand out:
- Dental Materials was the largest individual subject, accounting for 23 MCQs. It deserves substantial preparation time.
- Neurology had 18 MCQs, making it a surprisingly prominent basic medical subject.
- OMFS and Oral Medicine both had 12 questions, suggesting good coverage of clinical dentistry.
- Community Dentistry had 10 questions, spread across epidemiology, behavioural sciences and public health.
- Endocrinology and Biochemistry also had 10 questions each.
These priorities reflect this particular recalled paper, not a guaranteed distribution in future FCPS examinations.
Paper
FCPS Dentistry – 7 October 2026
Morning Paper Recalls – Subject-wise Question Bank
Total: 185 numbered questions
Available: 184 questions (Q17 is missing from the supplied paper).
PART 1 – QUESTIONS
DENTAL MATERIALS
Q1. Which type of Glass Ionomer Cement (GIC) is used in Atraumatic Restorative Treatment (ART)?
A. Type I
B. Type II
C. Type III
D. Type IV
E. Type V
Q2. Which impression material would you use to take an impression of a dentate patient with many undercuts?
A. High-fusing compound
B. Low-fusing compound
C. Wax
D. Zinc oxide eugenol
E. Rubber polyether
Q3. During kneading of impression compound, a substance was leached out, making the material rigid. Which substance was leached?
A. Stearic acid
B. Dibutyl phthalate
Q4. Which type of composite resin is strongest?
A. Microfilled
B. Macrofilled
C. Hybrid
Q5. Which component of GIC allows it to make a chemical bond with the tooth surface?
A. Polyacrylic acid
B. Tartaric acid
C. Itaconic acid
D. Aluminium glass
Q6. A manufacturer found that there was an impurity of gypsum (CaSO₄·2H₂O) in gypsum products. What effect does this impurity have on setting time?
A. Increase the setting reaction
B. Decrease the setting time
C. Increase setting expansion
D. Decrease setting expansion
E. No change
Q7. Resin is a resin sealer. Resin sealers provide what advantage?
A. Dimensional stability
B. Radiopacity
C. Monoblock
D. Bacteriostatic
Q8. A dentist is preparing a tooth for a fixed partial denture (FPD). The tooth got chipped off. It was restored with GIC. The dentist then took an impression with addition silicone. While removing the impression, he noticed that only the area of impression in contact with the tooth had not polymerised. What is the likely reason?
Q9. Which type of cement forms a true chemical bond with tooth structure?
A. Composite resin
B. Zinc polycarboxylate
C. Zinc oxide eugenol
Q10. Carnauba wax is added to paraffin wax to:
A. Increase the melting point
Q11. A restoration was placed in a tooth. On examination, surface cracks were observed in the restorative material. Which material property is most closely related to the material's resistance to crack propagation?
A. Brittleness
B. Fracture toughness
C. Ductility
D. Malleability
Q12. Which material property is most important for the longevity of a dental restoration?
A. Aesthetics
B. Fracture toughness
C. Colour stability
D. Translucency
Q13. Which of the following is a retarder of the setting reaction in gypsum products?
Q14. To minimise shrinkage and porosity in dental porcelain during firing, the technician should:
Q15. What is the main disadvantage of wax as a temporary denture base?
Q16. An impression material is needed for a PFM bridge. You have to select an impression material that has no bad smell (neutral odour).
A. Alginate
B. Addition silicone
Q18. What is the advantage of ZOE temporary filling material?
Q19. A female patient presented with a restoration with amalgam done a few months back. She now presents with fracture of the restoration. Which component of amalgam leads to fracture of the restoration?
A. Low copper amalgam
B. High copper amalgam
C. Zinc causing expansion
D. Mercury acting as a binder
Q20. A dental technician wants to make a wax pattern of a tooth. To avoid leaching of substances, incorporation of impurities and unnecessary flow, how should the technician warm the wax?
A. Directly over a flame
B. In a water bath
C. In a wax annealer
D. By another heating method
Q21. Increased powder-to-liquid ratio, followed by rapid mixing of GIC, would result in:
A. Bubbles
B. Non-uniform appearance
C. Loss of adhesion to tooth
Q22. A restoration was made for a patient. During trial, it was seating on the die. After cementing it with zinc phosphate cement, the die was not seating. What is the likely reason?
Q23. The glass phase in castable ceramics is primarily associated with what?
Q24. Which of the following is a component of castable ceramics? (Question/options incomplete in original recall.)
OPERATIVE DENTISTRY
Q25. Polymerisation shrinkage in composite resin is associated with which component?
A. Organic resin matrix
B. Inorganic fillers
Q26. How many seconds should dentin be etched?
A. 5 seconds
B. 10 seconds
C. 15 seconds
D. 30 seconds
Q27. Which restoration has the highest compressive strength?
A. Nanofilled composite
B. Conventional composite
C. Compomer
Q28. Which of the following dental restorative materials has the highest mechanical strength?
A. Glass ionomer cement (GIC)
B. Zinc phosphate cement
C. Polycarboxylate cement
D. Resin composite
Q29. A patient presented with a restoration in the upper 6 a few months back. You see that there is a gap between the restoration and tooth. The restoration has locally peeled back in the cavity. Which material had been used for the restoration?
A. Unfilled acrylic resin
B. Filled acrylic resin
C. Composite resin
D. Amalgam
E. GIC
Q30. A patient with high caries risk needs a restoration in a posterior molar. Which material will you choose that can manage the stresses?
A. Composite resin
B. Compomer
C. RMGIC
Q31. A 4-year-old child with an active carious lesion is planned for Silver Diamine Fluoride (SDF) application. What is the most appropriate method of application?
A. Apply a thick layer of SDF and ask the patient to rinse
B. Apply a thin layer of SDF with a cotton swab and wash immediately
C. Apply a thin layer of SDF with a microbrush and instruct the patient not to brush for at least 24 hours
D. Apply SDF to the whole mouth as a mouthwash
E. Spray SDF directly onto the teeth
PROSTHODONTICS
Q32. A patient presented with an edentulous upper jaw. Only the remaining third molars in the lower jaw are present. Which material will you use to make a denture for the patient?
A. Heat-cure acrylic
B. Self-cure acrylic
PAEDODONTICS
Q33. A 4-year-old boy has a missing tooth and requires a temporary replacement before definitive restoration. Which material is most appropriate for the temporary tooth?
A. Implant-supported crown
B. Minimal-preparation bridge
C. Self-cure acrylic resin tooth
D. Heat-cure acrylic tooth
Q34. While preparing a cavity in a deciduous tooth, the pulp got exposed. Which material can be used for direct pulp capping and is also compatible with the pulp?
Q35. The dentist has the child sitting in the dental chair. Before giving local anaesthesia, the child has tears in their eyes and is not opening their mouth. What will you do?
A. Use Tell-Show-Do technique
B. Use sedation
C. Use restraint technique
ORTHODONTICS
Q36. Distraction osteogenesis is based on which concept?
A. Lillazov's law of tension-stress
B. Functional matrix theory
Q37. Relapse after orthodontic treatment is due to:
Q38. An area at which growth occurs independently of the external environment is called:
Q39. When orthodontic force is applied to a tooth, what happens?
Q40. Interceptive orthodontic treatment is NOT indicated in which situation?
A. Anterior crossbite or thumb-sucking habit
B. Mesial shift of molars with early loss of first primary molar
C. Distal shift of molars with early loss of first primary molar
D. Class II malocclusion with normal alignment or minimal crowding/spacing
Q41. During heavy forces in orthodontic tooth movement, which cells are responsible for both collagen deposition and collagen resorption in the periodontal ligament?
A. Cementoblasts
B. Osteoblasts
C. Osteoclasts
D. Fibroblasts
Q42. The dentoalveolar changes observed in a child due to prolonged thumb-sucking can be explained by which theory?
ORAL AND MAXILLOFACIAL SURGERY
Q43. A patient requires surgical extraction of an impacted tooth. They have been taking aspirin 75 mg for quite a while. Their PT is 21 seconds (control is 15 seconds). How will you manage this case?
A. Stop aspirin for 10 days and then do extraction
B. Stop aspirin for 7 days and then do extraction
C. Proceed with extraction and use local measures to stop bleeding
Q44. A patient has dislocation of the TMJ joint. Which structure prevents dislocation of the TMJ?
A. Lateral pterygoid muscle
B. Fibres of the capsule
Q45. Boxer got hit by a punch. His jaw deviated on one side. Most likely problem is:
A. Disc displacement with reduction
B. Disc displacement without reduction
C. Unilateral condyle fracture
D. TMJ disorder
Q46. A patient complains of pain in the TMJ. No clicking sounds and no radiographic findings. What is the diagnosis?
Q47. A dentist started to give an inferior alveolar nerve block. After some time, the patient was unable to close their eye. What complication has occurred?
Q48. A patient has a history of allergic reactions to local anaesthetic. On history, it was found that all those local anaesthetics had methylparaben in their components. Which component of local anaesthetic is most likely to cause allergic reactions?
A. Methyl paraben
B. Epinephrine
Q49. Local anaesthetic allergy is most commonly due to which constituent?
A. Lidocaine
B. Methyl paraben
C. Sodium chloride
Q50. A patient has been taking Alendronate for osteoporosis. A lesion with exposed bone developed in the oral cavity. What is the likely diagnosis?
Q51. A patient presents with periorbital ecchymosis and mobility of the maxilla on palpation. Radiographically, there is a straight fracture line across the maxilla, separating it from the palate shelves and nasal septum, with the fracture line extending into the pterygoid plates. Which fracture is this?
A. Le Fort I
B. Le Fort III
C. Le Fort II
D. Zygomaticomaxillary complex fracture
Q52. After giving local anaesthesia in the oral cavity, a patient develops light-headedness, flushing and headache. What is the likely reason?
A. Local anaesthetic toxicity
B. Vasovagal syncope
Q53. Infection of the lateral incisor can spread to which space?
Q54. What is the clinical scenario associated with osteoradionecrosis?
ORAL MEDICINE
Q55. A patient has a history of betel nut chewing, burning sensation in the mouth and difficulty opening the mouth. What is the most likely diagnosis?
Q56. A patient presents with supernumerary teeth in the incisor region and also in the molar region. What is the syndrome?
Q57. Bilateral mandibular retrognathia and hearing loss are associated with which syndrome?
Q58. A patient has multiple missing teeth in the anterior region (anodontia), scanty dry hair and absence of sweating. What is the diagnosis?
Q59. A patient has upward-slanting palpebral fissures, a depressed nasal bridge and a prominent simian crease. What is the most likely diagnosis?
Q60. A patient presents with gums peeling off on brushing (desquamative gingivitis) and ulcerated buccal mucosa. Nikolsky sign is positive. What is the most likely diagnosis?
A. Mucous membrane pemphigoid
B. Pemphigus vulgaris
C. Erythema multiforme
D. Aphthous ulcer
Q61. A child has barrel-shaped teeth and notched incisal edges. What is the disorder?
Q62. A patient presents with localised hyperpigmentation of the gingiva, with no history of medication or systemic illness. What is the most likely diagnosis?
A. Smoker melanosis
B. Oral melanoma
C. Physiologic pigmentation
D. Drug-induced pigmentation
E. Amalgam tattoo
Q63. Ulcers due to infection in the oral cavity are characterised by:
A. White plaque with pseudomembranes
B. Erythematous base with white areas
C. Painful ulcers with yellow base
Q64. What is the diagnosis in a clinical scenario of ankyloglossia?
Q65. What is the diagnosis in a clinical scenario of Candida albicans infection?
Q66. What is the diagnosis in a clinical scenario of erosive lichen planus?
ORAL PATHOLOGY
Q67. A 9-year-old child presents with a painless swelling in the posterior mandible. Radiograph shows a multilocular radiolucency with a soap-bubble appearance. What is the most likely diagnosis?
A. Ameloblastoma
B. Paget's disease
C. Odontogenic myxoma
D. Cherubism
Q68. A lesion is present at the angle of the mandible, showing islands of epithelium with cystic spaces. What is the likely diagnosis?
Q69. A patient presents with a tumour in the superficial lobe of the parotid gland. What investigation will you do to diagnose the lesion?
Q70. A patient presents with a unilocular radiolucency in the posterior border of the mandible. Radiographic examination reveals multiple small tooth-like structures within the lesion. What is the most likely diagnosis?
A. Compound odontoma
B. Complex odontoma
C. Ameloblastoma
D. Odontogenic keratocyst
Q71. A middle-aged patient presents with a brownish plaque on the cheek. Histopathology reveals epithelial nests filled with keratin. The lesion is well-circumscribed and developed rapidly over a few weeks. What is the most likely diagnosis?
A. Seborrheic dermatitis
B. Keratoacanthoma
C. Squamous cell carcinoma
D. Actinic keratosis
E. Basal cell carcinoma
Q72. A dental student is unable to extract a tooth despite correct technique. Radiograph shows a bulbous root. What is the most likely diagnosis?
A. Ankylosis of the tooth
B. Loss of cementum
C. External root resorption
Q73. Fordyce spots are:
COMMUNITY DENTISTRY
Q74. In the Community Periodontal Index of Treatment Needs (CPITN), when is a sextant assigned a score of X?
A. When no teeth are present in the sextant
B. When fewer than two teeth are present in the sextant
C. When all teeth have periodontal pockets
D. When there is no gingival bleeding
Q75. A longitudinal study is conducted in which groups of pregnant women with different maternal diseases are followed to determine whether their babies develop congenital abnormalities. What type of study design is this?
A. Case-control study
B. Cohort study
C. Cross-sectional study
D. Randomised controlled trial
Q76. A bright student who performs well in studies but avoids giving presentations in class and avoids attending family gatherings most likely suffers from:
A. Panic disorder
B. Social Anxiety Disorder
C. Generalised anxiety disorder
D. ADHD
Q77. A patient describes his feelings and concerns about his illness to the doctor. Which of the following is the most appropriate response by the doctor?
A. Sympathy
B. Empathy
Q78. What is the main consequence of a false-negative test result?
A. Wastage of time
B. Wastage of resources
C. False reassurance to the patient
Q79. Public health programme planning has 11 steps. Which third step is situational analysis? It is related to:
Q80. When was the modified DMFT index introduced by WHO?
A. 1981
B. 1982
C. 1984
D. 1986
E. 1987
Q81. What is the impact of mass media?
A. Very effective in bringing about change in behaviour
B. Moderately effective in bringing about change in behaviour
C. Not effective in bringing about change in behaviour
Q82. A public health analyst wants to study the global prevalence of influenza. What type of study design will be used?
A. Ecological study
B. Cross-sectional study
Q83. As a public health specialist, you are invited to a school where children do not brush regularly. Which model of behaviour change would you utilise to encourage children to start regular toothbrushing?
A. Social Cognitive Theory
B. Health Belief Model
C. Theory of Planned Behaviour
D. Transtheoretical Model
STERILISATION AND DISINFECTION
Q84. What is the concentration of glutaraldehyde used for disinfection?
Q85. The most potent disinfectant chemical used for cold sterilisation of instruments is:
A. 3.5% hydrogen peroxide
B. Povidone iodine
C. Sodium hypochlorite
D. 2% glutaraldehyde
Q86. A rubber dam sheet is to be disinfected by immersion for 10 hours. Which solution is most appropriate?
A. 2% glutaraldehyde
B. 70% ethanol
C. Sodium hypochlorite (1%)
D. 0.2% chlorhexidine
Q87. Which of the following is the best disinfectant for clinical surfaces after treating a patient with Mycobacterium tuberculosis?
A. Sodium hypochlorite
B. Ethyl alcohol
Q88. In an autoclave, after autoclaving at 121°C for 15 minutes, the autoclave strip still shows spores. What could have been the problem?
A. Inadequate water in the reservoir
B. Using high pressure
C. Using ethylene oxide (EO) as a gas
ORAL BIOLOGY
Q89. A child presents with sparse hair, multiple missing teeth, defective nails and reduced sweating, suggestive of ectodermal dysplasia. The most likely stage of tooth development affected is:
A. Bell stage
B. Early bell stage
C. Late bell stage
D. Initiation and proliferation stage
Q90. A newborn presents with a unilateral cleft lip extending into the floor of the hard palate. This defect results from failure of fusion between which embryological processes?
A. Palatal shelves
B. Medial nasal process and maxillary process
C. Lateral nasal process and maxillary process
D. Two maxillary processes
Q91. In a patient with cleft philtrum, the philtrum of the upper lip is derived from fusion of:
A. Medial nasal prominences
B. Median nasal and frontal processes
C. Medial and lateral nasal processes
Q92. Cleft lip results from failure of fusion of facial processes during embryonic development. During which period of gestation does this developmental defect occur?
A. First trimester
B. Early second trimester
C. Late second trimester
D. Early third trimester
ORAL MORPHOLOGY
Q93. At what age does root formation of third molars usually complete?
A. 18–25 years
B. 17–21 years
Q94. A father brings his 10-year-old child who presents with an extra cusp on the palatal surface of an upper molar. This cusp is called:
A. Cusp of Carabelli
B. Talon's cusp
C. Leong's tubercle
D. Dens evaginatus
Q95. While preparing for an MOD cavity restoration, you notice an oblique ridge on the first maxillary molar connecting two cusps. Which two cusps are connected?
A. Mesiobuccal to distobuccal
B. Mesiolingual to distolingual
C. Mesiobuccal to distolingual
D. Mesiolingual to distobuccal
Q96. In an OPG, the upper and lower second molars are partially erupted. Maxillary and mandibular canines were erupted. What is the age of the patient?
A. 11 years
B. 12 years
C. 13 years
D. 14 years
ORAL HISTOLOGY
Q97. On histological examination of filiform papillae, what will you see?
A. Thread-like extensions
B. Umbrella-like extensions
C. Mushroom-shaped extensions
D. Leaf-shaped
Q98. On the dorsum of the tongue, a structure shows finger-like/foot-like processes lined by stratified squamous epithelium, without taste buds. What is this structure?
A. Circumvallate papilla
B. Lingual tonsil
C. Filiform papilla
D. Fungiform papilla
RADIOLOGY
Q99. A patient presents with multiple caries in the posterior region. Which radiograph would you choose for caries detection and restoration follow-up?
A. Bitewing
B. Periapical
C. OPG
Q100. What imaging modality is used for cleft lip and palate assessment?
PERIODONTOLOGY
Q101. A patient presents with the complaint that they were eating food and a solid food particle got stuck in the gingival sulcus. After some time the area got swollen. They also have periodontal disease. What might be the reason for swelling?
CELL PHYSIOLOGY
Q102. Facilitated diffusion requires:
Q103. CO₂ exchange between alveoli and blood occurs by:
Q104. What is the effect of hyperkalaemia on a neuron?
CARDIOVASCULAR SYSTEM
Q105. A patient with valvular degeneration of the heart requires which appropriate investigation?
Q106. A patient has ST-segment elevation on ECG and crushing chest pain. Which cardiac enzyme increases first in this situation?
A. Troponin
B. CK-MB
C. LDH
Q107. During exercise, myocardial blood flow is primarily regulated by:
GASTROENTEROLOGY
Q108. A patient presents with difficulty in swallowing (dysphagia). Which mechanism is responsible for moving food through the oesophagus towards the stomach?
A. Peristalsis of muscularis mucosae
B. Peristalsis of muscularis externa
C. Contraction of muscularis externa
D. Oesophagogastric sphincter
Q109. A patient has HBsAg negative, anti-HBc positive and anti-HBs positive results. What does this indicate?
PULMONOLOGY
Q110. A patient was stabbed just above the clavicle and developed respiratory difficulty. Which structure of the lung is involved in such an injury?
A. Apical lobe of lung
B. Middle lobe of lung
C. Inferior lobe of lung
D. Mediastinal pleura
E. Axillary pectoral fascia
Q111. What type of necrosis is seen in Mycobacterium tuberculosis infection?
Q112. A patient presents with fever, night sweats, weight loss, hepatosplenomegaly and generalised lymphadenopathy. What is the likely diagnosis?
NEPHROLOGY
Q113. A hiker climbed a mountain and developed shortness of breath. What acid-base imbalance will be present?
Q114. A patient has severe vomiting. What acid-base imbalance would this lead to?
Q115. Which of these is a feature of Conn's syndrome (primary hyperaldosteronism)?
Q116. A person breathing into a paper bag causes hyperventilation according to the recall. What will cause the hyperventilation?
A. Increased arterial CO₂
B. Increased PCO₂ in alveoli
C. Decreased PCO₂ in alveoli
D. Decreased PCO₂ in blood
Q117. A patient with increased peritubular capillary hydrostatic pressure produces a large urine output. What factor is responsible for the large urine output?
A. Increased secretion of Na and water in peritubular capillaries
B. Increased absorption of Na and water in peritubular capillaries
C. Re-entry/leak of Na and water into the renal tubular lumen
HEMATOLOGY
Q118. Vitamin B12 needs which factor to get absorbed?
Q119. Deficiency of which vitamin leads to a high level of homocysteine in urine?
Q120. A patient has a platelet count of 275 × 10³/mm³ and bleeding time of 5 minutes. What does this indicate?
Q121. In a scenario of iron-deficiency anaemia, what is the pattern of anaemia?
Q122. An 8-year-old child presents with profuse bleeding after extraction of a deciduous tooth. After investigation, he is diagnosed with haemophilia. The blood analysis shows deficiency of:
A. Factor IX
B. Factor VIII (large component)
C. Factor VIII (small component)
D. Factor XII
ENDOCRINOLOGY
Q123. A 30-year-old female patient has symptoms of hypothyroidism such as weight gain and depression. What is the most likely diagnosis?
Q124. A patient has Graves' disease with features of hyperthyroidism. What other characteristic is also present in this disease?
Q125. A patient with symptoms of hypothyroidism has low TSH concentration and a markedly increased TSH response when given TRH. Which type of hypothyroidism is most likely?
Q126. A patient presents with swelling in the neck that moves up and down with swallowing. There is weight loss and other symptoms of hyperthyroidism. What is the most likely diagnosis?
Q127. A patient presents with a midline neck swelling that moves upwards with deglutition (swallowing) and tongue protrusion. What is the most likely diagnosis?
Q128. A child presents with a painless midline neck swelling that moves upwards on swallowing and tongue protrusion. The swelling is related to a remnant of the thyroglossal duct. From which anatomical structure does this duct originate?
A. Foramen cecum
B. Base of tongue
C. Tuberculum impar
D. Sulcus terminalis
Q129. What is the main regulator of 25-hydroxycholecalciferol?
A. PTH
B. Serum calcium
C. 1,25-dihydroxycholecalciferol
Q130. Which statement regarding vitamin D metabolism is correct?
A. 25-hydroxylase is in the kidney and alpha-hydroxylase in the liver
B. 25-hydroxylase is in the skin and alpha-hydroxylase in the liver
C. 25-hydroxylase is in the liver and alpha-hydroxylase in the kidney
D. 1,25-dihydroxycholecalciferol is formed in the liver
Q131. A girl comes to the dentist. On examination, she has no periodontal disease. On X-ray, there is a cotton-wool appearance. Otherwise she is healthy. What is the most likely diagnosis?
A. Late Paget's disease
B. Early-stage Paget's disease
C. Late-phase Paget's disease
D. Diffuse radiolucency of mandible
Q132. A female patient aged 59 years presents with osteoporosis and multiple fractures of bone. She has not taken any medication. What is responsible for this?
Q133. What is the stimulus for glucagon secretion?
NEUROLOGY
Q134. A patient has difficulty turning the head to the side and elevating the shoulder. Which nerve is involved?
Q135. A patient with tenderness on the ramus of the mandible and zygomatic arch has pain. Which nerve might be involved?
Q136. A patient has an absent corneal reflex. Which nerve is involved?
Q137. A patient with Parkinson's disease presents with stooped posture, shuffling gait and a lesion in substantia nigra. Which neurotransmitter is affected?
A. Dopamine
B. Serotonin
Q138. During superficial lobe surgery of the parotid gland for a tumour, which nerve is most likely to be injured?
Q139. A patient has drooping of the lower margin of the eye and is unable to close the eye. What is the site of the brain lesion?
A. Pons
B. Cerebellum
C. Medulla
D. Cerebrum
Q140. A 24-year-old male has a post-RTA injury, was briefly unconscious at the scene, then had a lucid interval, followed by rapidly worsening drowsiness, a dilated/sluggish pupil on one side and deterioration into unconsciousness. What is the most likely diagnosis?
A. Epidural haematoma
B. Subdural haemorrhage
C. Subarachnoid haemorrhage
Q141. A patient with bronchogenic carcinoma presents with wasting and wrinkling of one side of the tongue, with deviation of the tongue towards the affected side on protrusion. Which nerve is most likely involved?
A. Facial nerve (CN VII)
B. Vagus nerve (CN X)
C. Hypoglossal nerve (CN XII)
D. Glossopharyngeal nerve (CN IX)
Q142. A patient presents with weakness/paralysis of the right half of the body along with speech problems. Which part of the brain is most likely affected?
A. Right parietal lobe
B. Left parietal lobe
C. Right frontal lobe
D. Left frontal lobe
Q143. A 55-year-old man presents with drooping of the right eyelid (ptosis), unequal pupil size (anisocoria), a dilated right pupil (mydriasis) and horizontal diplopia on attempted gaze. Which is the most likely diagnosis?
A. Trochlear nerve palsy
B. Oculomotor nerve palsy
C. Horner syndrome
D. Abducens nerve palsy
Q144. After a mastoid surgery, the patient experiences hyperacusis (excessive sensitivity to sound), but taste sensation in the anterior two-thirds of the tongue remains intact. Where is the site of injury?
A. Nerve to stapedius
B. Chorda tympani
C. Greater petrosal nerve
D. Facial nerve trunk
Q145. A patient has extreme sensitivity to cold and hot and has sleep and hormonal disturbances. The lesion is present in which structure?
A. Thalamus
B. Hypothalamus
C. Pituitary gland
D. Pineal gland
Q146. After thyroid surgery, a patient develops heaviness of voice. Which muscle is related to this condition?
Q147. Intrinsic muscles of the larynx are supplied by which nerve?
Q148. A patient has the mandible deviated to the right side. This is due to damage to muscles derived from which pharyngeal arch?
Q149. A patient feels pain on the skin. Pain on the skin is carried by which sensory nerve endings?
A. Free nerve endings
B. Pacinian corpuscles
C. Merkel discs
D. Ruffini endings
Q150. Carcinoma of the lower lip drains into which lymph nodes?
GENERAL PATHOLOGY
Q151. Due to a thrombus, an artery supplying the heart became blocked and the patient later died. On biopsy, small round bodies are visible. Which structures are these?
A. Apoptotic bodies
B. Psammoma bodies
C. Myelin figures
D. Councilman bodies
Q152. What type of necrosis occurs in the heart?
Q153. A patient has been taking antibiotics for many months for a heart condition. Which clotting factors would be deficient?
Q154. A long-standing alcoholic patient presents with chronic alcoholism. Deficiency of which vitamin is associated with the condition in the recall?
Q155. What type of adaptive response occurs in the thyroid?
Q156. A child presents with a zygomatic bone defect along with a congenital heart defect (outflow tract anomaly). Abnormal migration of which of the following is most likely responsible for both defects?
A. Notochord
B. Neural crest cells
C. Endoderm
D. Neural tube
Q157. In a patient with burns, bullae/blisters develop due to fluid accumulation. What type of exudate is present in the bullae?
Q158. A patient presents with excessive collagen deposition extending beyond the margins of a wound. The patient has a history of multiple ear piercings. What is the most likely diagnosis?
Q159. What is the diagnosis in a clinical scenario of Ehlers-Danlos syndrome?
IMMUNOLOGY
Q160. A child develops post-streptococcal glomerulonephritis with cola-coloured urine. What type of immune mechanism is involved?
Q161. A patient has type 1 diabetes mellitus with raised glucose. What type of immune mechanism is involved?
Q162. After antibiotic administration, a patient develops urticaria and rashes. This is due to which immunoglobulin?
MICROBIOLOGY
Q163. PAS staining is used for:
A. Bacteria
B. Viruses
C. Fungi
D. Spirochetes
Q164. A person eats canned fish and develops difficulty in swallowing and difficulty breathing. Which toxin is involved?
Q165. Botulinum toxin is injected into the skin to remove wrinkles, causing atrophy of muscles and inhibiting acetylcholine. At which site does botulinum toxin act?
A. Presynaptic terminal
B. Postsynaptic terminal
C. Neuromuscular junction
D. Acetylcholinesterase
Q166. A child is born with cataracts and deafness. What exposure might have occurred to the mother during pregnancy?
HISTOLOGY
Q167. A patient does not take vegetables and foods in their diet. Which stage of collagen synthesis would be affected?
Q168. What is the histological composition of the submandibular gland?
BIOCHEMISTRY
Q169. A pregnant female takes vitamin A for acne treatment. What systemic complication can occur in the baby?
A. Genitourinary
B. Gastrointestinal
C. Central nervous system
Q170. Which antibody is present in secretions?
Q171. Vitamin A is transported from the intestines to the liver by:
A. Free retinol
B. Chylomicrons
C. VLDL
D. Albumin
Q172. What is the most potent antioxidant?
Q173. What is the protein percentage in balanced diet?
A. 30–35%
B. 25–30%
C. 20–25%
D. 15–20%
E. 10–15%
Q174. What is the main dietary source of vitamin K?
A. Turban (as written in recall)
B. Green vegetables
C. Fruits
D. Milk
Q175. The bitter taste of certain foods is primarily due to which type of chemical compound?
A. Aldehydes
B. Alkaloids
C. Ketones
D. Esters
Q176. A patient takes spinach daily for low calcium. However, their calcium levels have decreased more. Which component of spinach leads to decreased bioavailability of other minerals?
Q177. What causes hypervitaminosis A?
Q178. A patient with a cardiac condition presents with metabolic acidosis and elevated blood lactate. The patient has adequate arterial oxygen saturation and no history of medication use associated with lactic acidosis. Which mechanism best explains lactate accumulation?
PHARMACOLOGY
Q179. An elderly obese patient was started on IV gentamicin twice daily post-laparotomy. Which of the following will be disturbed?
Q180. A patient with joint pain and peptic ulcer requires medication for pulpitis. Which drug would you give?
Q181. A patient was bitten by a dog. Gram staining shows Gram-negative coccobacilli. The organism is Capnocytophaga canimorsus. Which antibiotic is the best choice?
Q182. A patient with chest pain during dental treatment is given sublingual nitroglycerin. It acts quickly to relieve the pain. This quick action is due to:
A. Thin epithelium
B. No keratinocytes
C. Thick submucosa
D. Vascular area
Q183. Which antibiotic can cause bleeding gums?
EMBRYOLOGY
Q184. Malleus and incus are derived from which pharyngeal arch?
ETHICS
Q185. A patient is diagnosed with HIV/AIDS. He does not want to tell his wife about the diagnosis. What principle is involved?
A. Confidentiality can be broken in the best interest of the patient
B. Do not tell the wife about the diagnosis
C. Public interest is involved
PART 2 – ANSWER KEY WITH EXPLANATIONS
DENTAL MATERIALS
| Question | Correct answer | Explanation |
|---|---|---|
| Q1 | B – Type II | Type II GIC is restorative GIC; high-viscosity GIC is used in ART. |
| Q2 | A – High-fusing compound is NOT appropriate; alginate would be preferable | Alginate is elastic and can be removed from undercuts. The supplied options do not include alginate; E (polyether) is also elastic but relatively stiff. This question is poorly constructed. |
| Q3 | A – Stearic acid | Stearic acid is a constituent of impression compound. |
| Q4 | C – Hybrid | Hybrid composites combine strength and handling properties. However, strength depends on formulation and filler loading. |
| Q5 | A – Polyacrylic acid | Carboxyl groups interact ionically with calcium in tooth hydroxyapatite. |
| Q6 | B – Decrease setting time | Dihydrate impurity provides crystallisation nuclei and accelerates gypsum setting. |
| Q7 | A – Dimensional stability | Resin sealers generally provide good dimensional stability. |
| Q8 | Platinum catalyst poisoning | Eugenol or sulphur-containing contaminants can inhibit PVS polymerisation. |
| Q9 | B – Zinc polycarboxylate | Polycarboxylate cement chemically bonds to tooth structure. |
| Q10 | Increase melting point | Carnauba is a hard wax added to increase hardness and melting point. |
| Q11 | B – Fracture toughness | Fracture toughness measures resistance to crack propagation. |
| Q12 | B – Fracture toughness | Resistance to crack growth is important for restoration longevity. |
| Q13 | Borax | Borax is a gypsum setting retarder. |
| Q14 | Small particles and well-condensed mass | Better packing reduces porosity and firing shrinkage. |
| Q15 | Thermal contraction | Wax has a relatively high coefficient of thermal expansion and is dimensionally unstable. |
| Q16 | B – Addition silicone | PVS is dimensionally stable and available in neutral-odour formulations. |
| Q18 | Thermal sedative effect | Eugenol has a sedative effect on the pulp. |
| Q19 | Ambiguous – no reliable answer | High-copper amalgam generally improves strength and reduces gamma-2. The recalled stem does not support selecting it as the cause of fracture. |
| Q20 | C – Wax annealer (preferred) | Controlled heating avoids local overheating and contamination. |
| Q21 | A – Bubbles (most likely) | Rapid mixing can entrap air. The wording and options are incomplete, so the exact expected answer is uncertain. |
| Q22 | Hydraulic pressure | Excess cement can prevent complete seating of a restoration. |
| Q23 | Glass matrix | Castable glass ceramics have a glassy matrix with crystalline components. |
| Q24 | Incomplete question | Options are absent; cannot assign a reliable answer. |
OPERATIVE DENTISTRY
| Question | Correct answer | Explanation |
|---|---|---|
| Q25 | A – Organic resin matrix | Polymerisation shrinkage occurs when resin monomers form a polymer network. |
| Q26 | C – 15 seconds | Conventional dentin etching time is approximately 15 seconds. |
| Q27 | A – Nanofilled composite (recalled answer) | Mechanical properties vary by formulation; this is not a universal rule for every composite. |
| Q28 | D – Resin composite | Among the listed materials, resin composites generally have superior mechanical properties. |
| Q29 | B – Filled acrylic resin (recalled answer) | The clinical description is insufficient to establish the material conclusively. |
| Q30 | C – RMGIC (likely intended) | RMGIC can be useful in high-caries-risk situations because of fluoride release, although material selection depends on cavity and loading. |
| Q31 | C | Apply a small amount using a microbrush and avoid brushing the treated area for at least 24 hours according to the recalled protocol. |
PROSTHODONTICS
| Question | Correct answer | Explanation |
|---|---|---|
| Q32 | B – Self-cure acrylic | The recalled option is self-cure acrylic for the denture. In clinical practice, definitive denture bases are generally processed with heat-cure acrylic. |
PAEDODONTICS
| Question | Correct answer | Explanation |
|---|---|---|
| Q33 | C – Self-cure acrylic resin tooth | Suitable for a temporary replacement. |
| Q34 | Calcium hydroxide | A traditional direct pulp-capping material; contemporary calcium-silicate materials are often preferred. |
| Q35 | A – Tell-Show-Do | A basic behaviour-guidance technique in paediatric dentistry. |
ORTHODONTICS
| Question | Correct answer | Explanation |
|---|---|---|
| Q36 | A – Ilizarov's law of tension-stress | Gradual traction stimulates new bone formation. |
| Q37 | Transseptal fibres | These fibres contribute to relapse after orthodontic treatment. |
| Q38 | Growth centre | A growth centre has intrinsic growth potential; a growth site is influenced by environmental factors. |
| Q39 | Resorption on pressure side and deposition on tension side | This is the classic periodontal response to orthodontic tooth movement. |
| Q40 | D | Interceptive treatment is not routinely indicated for a Class II case with normal alignment and minimal crowding/spacing in the absence of another indication. |
| Q41 | D – Fibroblasts | Fibroblasts synthesise and degrade periodontal ligament collagen. |
| Q42 | Functional Matrix Theory | Functional influences and soft-tissue environments affect dentoalveolar development. |
ORAL AND MAXILLOFACIAL SURGERY
| Question | Correct answer | Explanation |
|---|---|---|
| Q43 | C – Proceed with extraction and local haemostasis | Low-dose aspirin is generally continued for routine dental extraction; local haemostatic measures are used. PT does not measure aspirin's platelet effect. |
| Q44 | B – Fibres of the capsule (recalled answer) | The capsule and ligaments help limit excessive translation; the lateral pterygoid assists protrusion. |
| Q45 | C – Unilateral condylar fracture | Mandibular deviation may occur towards the fractured side on opening. |
| Q46 | Myofascial pain dysfunction syndrome (MPDS) | TMJ pain without clicking or radiographic abnormalities is consistent with a muscular pain disorder. |
| Q47 | Transient facial nerve paralysis | Deposition of anaesthetic into the parotid region can block the facial nerve. |
| Q48 | A – Methylparaben | Parabens are potential allergens in some local anaesthetic formulations. |
| Q49 | B – Methylparaben (recalled answer) | True allergy to amide local anaesthetics is rare; preservatives and other additives can be responsible. |
| Q50 | Medication-related osteonecrosis of the jaw (MRONJ) | Associated with antiresorptive drugs such as alendronate. |
| Q51 | A – Le Fort I | A horizontal maxillary fracture separating the tooth-bearing maxilla and palate from the upper facial skeleton. |
| Q52 | B – Vasovagal syncope | Light-headedness and flushing may occur with a vasovagal reaction. |
| Q53 | Canine space | Infection from the maxillary lateral incisor can spread to the canine space depending on the root apex and muscle attachments. |
| Q54 | Osteoradionecrosis | Exposed, non-healing irradiated jaw bone following radiotherapy. |
ORAL MEDICINE
| Question | Correct answer | Explanation |
|---|---|---|
| Q55 | Oral submucous fibrosis | Strongly associated with areca/betel nut chewing; causes burning and progressive restricted mouth opening. |
| Q56 | Cleidocranial dysplasia | Characterised by multiple supernumerary teeth and delayed eruption. |
| Q57 | Treacher Collins syndrome | Mandibulofacial dysostosis with mandibular hypoplasia and ear abnormalities. |
| Q58 | Hypohidrotic ectodermal dysplasia | Hypodontia/anodontia, sparse hair and reduced sweating. |
| Q59 | Trisomy 21 (Down syndrome) | Upward-slanting palpebral fissures and simian crease are characteristic findings. |
| Q60 | B – Pemphigus vulgaris (likely) | Positive Nikolsky sign and intraoral erosions support pemphigus vulgaris; MMP is another cause of desquamative gingivitis. |
| Q61 | Syphilis | Hutchinson incisors are associated with congenital syphilis. |
| Q62 | C – Physiologic pigmentation | Normal melanin pigmentation can occur without systemic disease or medication. |
| Q63 | C – Painful ulcers with yellow base (likely intended) | Aphthous-type ulcers commonly have a yellow-white fibrinous base and erythematous halo. The question's wording is incomplete. |
| Q64 | Ankyloglossia (tongue-tie) | A short or restrictive lingual frenulum limits tongue mobility. |
| Q65 | Oral candidiasis | Clinical diagnosis depends on presentation; pseudomembranous candidiasis shows wipeable white plaques. |
| Q66 | Erosive lichen planus | Presents with painful erythematous and erosive mucosal lesions, often with peripheral Wickham striae. |
ORAL PATHOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q67 | A – Ameloblastoma (recalled answer) | Soap-bubble multilocular radiolucency is characteristic, but the age of 9 years is unusual; cherubism and myxoma are differential diagnoses. |
| Q68 | Ameloblastoma | Islands of odontogenic epithelium with cystic spaces are characteristic of conventional ameloblastoma. |
| Q69 | FNAC | Fine-needle aspiration cytology is a common initial investigation for parotid masses. |
| Q70 | A – Compound odontoma | Multiple small tooth-like structures are characteristic of compound odontoma. |
| Q71 | B – Keratoacanthoma | A rapidly growing, well-circumscribed keratin-filled lesion is characteristic. |
| Q72 | A – Ankylosis of the tooth | Fusion of cementum/dentine to alveolar bone prevents normal periodontal ligament separation. |
| Q73 | Sebaceous glands | Fordyce spots are ectopic sebaceous glands. |
COMMUNITY DENTISTRY
| Question | Correct answer | Explanation |
|---|---|---|
| Q74 | B – Fewer than two teeth | Such a sextant is excluded from CPITN scoring. |
| Q75 | B – Cohort study | Groups are followed to observe development of an outcome. |
| Q76 | B – Social anxiety disorder | Fear of social scrutiny and avoidance of presentations/gatherings. |
| Q77 | B – Empathy | Understanding the patient's feelings and perspective. |
| Q78 | C – False reassurance | A false-negative result can cause a person with disease to believe they are disease-free. |
| Q79 | Community diagnosis | Identifying problems, analysing needs and assessing available resources. |
| Q80 | Uncertain – verify the historical wording | The recall's options do not provide sufficient context to verify the date of introduction of a specific modified DMFT index. |
| Q81 | B – Moderately effective (likely intended) | Mass media is effective for awareness, but behaviour change usually requires additional interventions. |
| Q82 | A – Ecological study (likely intended) | A global population-level comparison is ecological; a representative survey of individuals at one time would be cross-sectional. |
| Q83 | A – Social Cognitive Theory (likely intended) | Modelling and observational learning can encourage children to adopt regular brushing. |
STERILISATION AND DISINFECTION
| Question | Correct answer | Explanation |
|---|---|---|
| Q84 | 2% glutaraldehyde | Commonly used concentration for high-level disinfection. |
| Q85 | D – 2% glutaraldehyde | A traditional high-level disinfectant; it should not be confused with routine surface disinfection. |
| Q86 | A – 2% glutaraldehyde (recalled answer) | Long immersion is associated with high-level disinfection; follow material compatibility and manufacturer instructions. |
| Q87 | A – Sodium hypochlorite | Appropriate chlorine-based surface disinfection when used at the recommended concentration and contact time. |
| Q88 | A – Inadequate water in reservoir (likely intended) | Inadequate water can impair steam generation and sterilisation. Biological indicators should be used to verify cycles. |
ORAL BIOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q89 | D – Initiation and proliferation stage (recalled answer) | Ectodermal dysplasia can affect tooth initiation, causing hypodontia/anodontia. |
| Q90 | B – Medial nasal and maxillary processes | Failure of fusion causes cleft lip. |
| Q91 | A – Medial nasal prominences | The intermaxillary segment forms the philtrum. |
| Q92 | A – First trimester | Cleft lip develops during early embryogenesis, generally around weeks 4–7. |
ORAL MORPHOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q93 | A – 18–25 years | Third molar root completion is variable and often occurs in late adolescence to early adulthood. |
| Q94 | A – Cusp of Carabelli | An accessory cusp on the palatal/mesiolingual surface of the maxillary first molar. |
| Q95 | D – Mesiolingual to distobuccal | The oblique ridge connects these two cusps. |
| Q96 | C – 13 years (most likely) | Second permanent molars commonly erupt around 12–13 years. |
ORAL HISTOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q97 | A – Thread-like extensions | Filiform papillae are slender and conical. |
| Q98 | C – Filiform papilla | They are keratinised and lack taste buds. |
RADIOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q99 | A – Bitewing | Best routine view for interproximal caries and monitoring posterior restorations. |
| Q100 | CBCT | Provides three-dimensional assessment of craniofacial structures; conventional imaging may also be used depending on the clinical question. |
PERIODONTOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q101 | Inhibited sulcular fluid drainage | Obstruction of drainage can cause local accumulation and swelling; the supplied recall identifies this mechanism. |
CELL PHYSIOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q102 | Carrier proteins | Facilitated diffusion uses membrane carriers or channels without direct ATP expenditure. |
| Q103 | Passive diffusion | CO₂ moves down its partial pressure gradient. |
| Q104 | Membrane depolarisation | Hyperkalaemia reduces the potassium gradient and makes the resting membrane potential less negative; severe elevation can inactivate sodium channels. |
CARDIOVASCULAR SYSTEM
| Question | Correct answer | Explanation |
|---|---|---|
| Q105 | Echocardiography | Evaluates valve structure, movement and haemodynamic function. |
| Q106 | A – Troponin (among the listed options) | Cardiac troponin is the preferred marker of myocardial injury. Myoglobin can rise earlier but is not listed. |
| Q107 | Local metabolic factors | Myocardial blood flow is regulated mainly by local metabolic demand. |
GASTROENTEROLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q108 | B – Peristalsis of muscularis externa | Coordinated contraction of circular and longitudinal muscle propels the bolus. |
| Q109 | Resolved hepatitis B infection with immunity | HBsAg negative, anti-HBc positive and anti-HBs positive indicate previous natural infection with recovery. |
PULMONOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q110 | A – Apical lobe | The lung apex extends above the clavicle. |
| Q111 | Caseous necrosis | Characteristic of tuberculosis. |
| Q112 | Tuberculosis (recalled answer) | Constitutional symptoms and generalised lymphadenopathy may occur; the clinical scenario alone is not diagnostic. |
NEPHROLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q113 | Respiratory alkalosis | High altitude causes hyperventilation, lowering arterial CO₂. |
| Q114 | Metabolic alkalosis | Loss of gastric hydrochloric acid through vomiting increases bicarbonate relative to acid. |
| Q115 | Hypertension | Excess aldosterone causes sodium retention and increased blood pressure. |
| Q116 | A – Increased arterial CO₂ (recalled answer) | Rebreathing raises inspired CO₂, stimulating ventilation. The wording of the original question is unclear. |
| Q117 | C – Increased leak/backflow into renal tubular lumen | Increased peritubular capillary hydrostatic pressure reduces tubular reabsorption, promoting diuresis. |
HEMATOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q118 | Intrinsic factor | Vitamin B12 binds intrinsic factor for absorption in the terminal ileum. |
| Q119 | Vitamin B12 deficiency (recalled answer) | B12 deficiency raises homocysteine; folate deficiency can also raise homocysteine. |
| Q120 | Normal platelet activity | Platelet count and bleeding time are within the stated normal range. |
| Q121 | Microcytic hypochromic anaemia | Iron deficiency reduces haemoglobin synthesis and MCV. |
| Q122 | B/C – Factor VIII deficiency | Haemophilia A is caused by factor VIII deficiency. The “large/small component” wording refers to the factor VIII complex; the exact option is not reliably distinguishable in the recall. |
ENDOCRINOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q123 | Myxedema (severe hypothyroidism) | Weight gain, depression and other hypothyroid features are consistent. |
| Q124 | Increased basal metabolic rate | Hyperthyroidism increases metabolic rate. |
| Q125 | Hypothalamic (tertiary) hypothyroidism – likely intended | A TSH response to administered TRH indicates a responsive pituitary and suggests deficient endogenous hypothalamic TRH. |
| Q126 | Thyroid swelling – likely toxic goitre | A thyroid swelling that moves with swallowing plus hyperthyroid features suggests thyroid pathology; the specific diagnosis requires more information. |
| Q127 | Thyroglossal duct cyst | A midline swelling that moves with swallowing and tongue protrusion is classic. |
| Q128 | A – Foramen cecum | The thyroglossal duct begins at the foramen cecum at the base of the tongue. |
| Q129 | A – PTH (question wording unclear) | PTH regulates renal 1-alpha hydroxylase and active vitamin D formation; it does not directly serve as the main regulator of 25-hydroxylation. |
| Q130 | C | 25-hydroxylation occurs mainly in the liver; 1-alpha hydroxylation occurs in the kidney. |
| Q131 | A/C – Late Paget's disease | Cotton-wool radiographic appearance is characteristic of the sclerotic phase of Paget's disease. |
| Q132 | Decreased oestrogen causing increased osteoclastic activity | Postmenopausal bone loss is related to increased bone resorption. |
| Q133 | Exercise | Exercise can stimulate glucagon secretion to maintain blood glucose. |
NEUROLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q134 | Accessory nerve (CN XI) | Supplies sternocleidomastoid and trapezius. |
| Q135 | Mandibular nerve (V3) | Provides sensory supply to the mandible and motor supply to muscles of mastication. |
| Q136 | Ophthalmic nerve (V1) | The afferent limb of the corneal reflex is V1; the efferent limb is facial nerve. |
| Q137 | A – Dopamine | Loss of dopaminergic neurons in substantia nigra pars compacta causes Parkinson's disease. |
| Q138 | Facial nerve (CN VII) | It traverses the parotid gland and is vulnerable during parotid surgery. |
| Q139 | A – Pons (recalled answer) | Facial nerve nucleus/fascicles are located in the pons. However, the described eye-closure deficit alone does not localise a central lesion precisely. |
| Q140 | A – Epidural haematoma | Classically associated with a lucid interval and rapid deterioration. |
| Q141 | C – Hypoglossal nerve (CN XII) | A lower motor neuron lesion causes ipsilateral tongue wasting and deviation towards the lesion. |
| Q142 | D – Left frontal lobe (likely intended) | A left hemispheric lesion can cause right-sided weakness and speech disturbance, particularly if the dominant frontal language/motor areas are involved. |
| Q143 | B – Oculomotor nerve palsy | Ptosis, mydriasis and diplopia are classic findings. |
| Q144 | A – Nerve to stapedius | Stapedius paralysis causes hyperacusis; preserved taste suggests chorda tympani is intact. |
| Q145 | B – Hypothalamus | Regulates temperature, sleep and endocrine control. |
| Q146 | Cricothyroid muscle | External branch of the superior laryngeal nerve supplies cricothyroid; injury affects pitch and voice projection. |
| Q147 | Vagus nerve | Intrinsic laryngeal muscles are supplied by recurrent laryngeal nerve, except cricothyroid. |
| Q148 | First pharyngeal arch | Muscles of mastication derive from the first arch. |
| Q149 | A – Free nerve endings | Carry pain and temperature sensation. |
| Q150 | Submental and submandibular lymph nodes | Lower lip lymphatic drainage is primarily to these nodes. |
GENERAL PATHOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q151 | A – Apoptotic bodies (likely intended) | Apoptotic bodies are membrane-bound fragments of dying cells. The recalled description of basophilic bodies is not sufficiently specific. |
| Q152 | Coagulative necrosis | The typical pattern in myocardial infarction. |
| Q153 | Factors II, VII, IX and X | Vitamin K-dependent clotting factors can fall after prolonged broad-spectrum antibiotic use. |
| Q154 | Vitamin K deficiency (recalled answer) | Chronic alcoholism can cause multiple nutritional deficiencies; the stem is incomplete. |
| Q155 | Metaplasia (recalled answer) | The question does not specify the underlying thyroid condition; thyroid adaptive changes can vary. |
| Q156 | B – Neural crest cells | Cranial neural crest contributes to facial skeletal structures and cardiac outflow tract development. |
| Q157 | Serous exudate | Burns commonly produce protein-poor serous blister fluid. |
| Q158 | Keloid | Excess collagen extends beyond the original wound margins. |
| Q159 | Ehlers-Danlos syndrome | Collagen synthesis/processing disorders cause hyperextensible skin, hypermobile joints and tissue fragility. |
IMMUNOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q160 | Type III hypersensitivity | Immune-complex deposition causes post-streptococcal glomerulonephritis. |
| Q161 | Type IV hypersensitivity | T-cell-mediated destruction of pancreatic beta cells is involved in type 1 diabetes. |
| Q162 | IgE | Type I hypersensitivity involves IgE-mediated mast-cell degranulation. |
MICROBIOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q163 | C – Fungi | PAS stains carbohydrate-rich fungal cell walls. |
| Q164 | Botulinum toxin | Can cause descending flaccid paralysis, dysphagia and respiratory failure. |
| Q165 | A – Presynaptic terminal | Botulinum toxin prevents acetylcholine release by cleaving SNARE proteins. |
| Q166 | Rubella | Maternal rubella infection can cause congenital cataracts and deafness. |
HISTOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q167 | Hydroxylation of proline and lysine residues | Vitamin C is required for collagen hydroxylation; deficiency impairs collagen synthesis. |
| Q168 | Mixed serous and mucous acini with serous demilunes | The submandibular gland is a mixed gland, predominantly serous. |
BIOCHEMISTRY
| Question | Correct answer | Explanation |
|---|---|---|
| Q169 | C – Central nervous system | Excess vitamin A is teratogenic and can cause CNS and craniofacial abnormalities. |
| Q170 | IgA | Secretory IgA is the major antibody in mucosal secretions. |
| Q171 | B – Chylomicrons | Dietary vitamin A is transported from the intestine in chylomicrons. |
| Q172 | Glutathione | A major intracellular antioxidant. |
| Q173 | E – 10–15% | A common balanced-diet protein recommendation is approximately 10–15% of total energy, depending on the guideline. |
| Q174 | B – Green vegetables | Leafy green vegetables are rich in vitamin K1. |
| Q175 | B – Alkaloids | Many alkaloids have a bitter taste. |
| Q176 | Oxalates (oxalic acid) | Oxalate binds calcium and reduces its bioavailability. |
| Q177 | Excess vitamin A intake | Hypervitaminosis A results from excessive preformed vitamin A. |
| Q178 | Increased anaerobic glycolysis | Tissue hypoperfusion or impaired oxidative metabolism can increase lactate production. |
PHARMACOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q179 | Distribution | Obesity affects the volume of distribution of drugs such as gentamicin; dosing requires weight-based pharmacokinetic consideration. |
| Q180 | Acetaminophen (paracetamol) | A suitable analgesic option in a patient with peptic ulcer disease. |
| Q181 | Amoxicillin-clavulanate | Provides coverage for Capnocytophaga canimorsus in appropriate clinical circumstances. |
| Q182 | D – Vascular area | Sublingual mucosa is highly vascular, allowing rapid absorption and bypass of first-pass metabolism. |
| Q183 | Vitamin K deficiency from prolonged broad-spectrum antibiotic use (possible intended answer) | Antibiotic-associated reduction in gut vitamin K production can contribute to bleeding. The original question lacks options and context. |
EMBRYOLOGY
| Question | Correct answer | Explanation |
|---|---|---|
| Q184 | First pharyngeal arch | Malleus and incus develop from Meckel cartilage of the first arch. |
ETHICS
| Question | Correct answer | Explanation |
|---|---|---|
| Q185 | C – Public interest / duty to protect an identifiable third party (context-dependent) | Confidentiality is important, but disclosure may be legally or ethically justified where there is a serious risk to an identifiable person. Follow applicable law and professional guidance; disclosure should be limited to what is necessary. |
IMPORTANT QUESTIONS REQUIRING VERIFICATION
The following recalls are incomplete, ambiguous or have potentially unreliable answer markings. Do not memorise their recalled keys blindly:
- Q2 – The ideal flexible material for undercuts is not included in the options.
- Q6 – Gypsum dihydrate impurity accelerates setting; the answer is decrease in setting time.
- Q19 – High-copper amalgam is not generally a cause of restoration fracture.
- Q21 – The options and intended consequence are unclear.
- Q23–24 – Castable ceramic questions lack sufficient detail.
- Q30 – RMGIC is plausible for high caries risk, but stress-bearing indications matter.
- Q60 – Distinguish pemphigus vulgaris from mucous membrane pemphigoid.
- Q67 – The age and radiographic description are not fully consistent.
- Q80 – The historical date needs confirmation against the specific WHO index reference.
- Q83 – The intended behaviour-change theory depends on the intervention described.
- Q89 – Ectodermal dysplasia affects tooth initiation; the recalled developmental stage needs careful interpretation.
- Q116 – The paper's wording appears internally inconsistent.
- Q122 – Factor VIII is correct for haemophilia A; the large/small component wording is unclear.
- Q125 – A TSH response to TRH helps distinguish hypothalamic from pituitary hypothyroidism.
- Q129 – PTH regulates renal activation of vitamin D, not directly hepatic 25-hydroxylation.
- Q131 – Cotton-wool appearance is associated with the sclerotic phase of Paget's disease.
- Q139 – A peripheral facial palsy and a pontine lesion are not interchangeable diagnoses.
- Q151 – The description does not establish apoptotic bodies with certainty.
- Q154–155 – The original stems are incomplete.
- Q183 – The question lacks options and may refer to antibiotic-associated vitamin K deficiency.
End of paper.