Nokea
A pulmonary embolus occurring while the patient is on the combined oral contraceptive pill:
- A. Is more likely in anti-thrombin III deficiency
- B. Is more likely in protein C deficiency
- C. Is an absolute contraindication to the combined pill
- D. Is an increased risk in smokers
Correct Answer: A
Rationale: Anti-thrombin III deficiency increases the risk of thromboembolic events, including pulmonary embolism, especially in patients on the combined oral contraceptive pill.
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The following statements regarding retinoblastoma are correct:
- A. It is usually fatal even if diagnosis is made early
- B. The tumour is heritable
- C. They may occur bilaterally
- D. The finding of leucorrhoea suggests the diagnosis
Correct Answer: B
Rationale: Retinoblastoma is heritable and can occur bilaterally. Early diagnosis improves prognosis, and leucorrhoea is not associated with retinoblastoma.
Recognised features of brucellosis include:
- A. Osteomyelitis
- B. Liver granuloma
- C. Pericarditis
- D. Splenomegaly
Correct Answer: D
Rationale: Splenomegaly
All are true about genotype - phenotype correlation in Brugada syndrome, except
- A. SCN5A mutation is associated with short PR interval
- B. LTCC mutation is associated with short QT interval
- C. Yield of genetic testing is low (25%)
- D. No major therapeutic implication of genetic testing
Correct Answer: D
Rationale: There are therapeutic implications of genetic testing in Brugada syndrome.
The following cranial nerves carry pre-ganglionic parasympathetic nerves:
- A. Oculomotor nerve
- B. Trigeminal nerve
- C. Facial nerve
- D. Vagus nerve
Correct Answer: D
Rationale: The vagus nerve carries parasympathetic fibers. The oculomotor, trigeminal, and facial nerves do not.
A seizure episode may be mimicked by:
- A. Breath-holding episode
- B. Choreoathetosis
- C. Hysterical reactions
- D. Vasovagal attack
Correct Answer: A
Rationale: Breath-holding episodes in children can mimic seizures due to transient loss of consciousness, often triggered by emotional stress or pain.