The clinical features of subaortic membrane stenosis can include all, except
- A. Ejection systolic murmur
- B. Ejection click
- C. End-diastolic murmur of aortic regurgitation
- D. Low pulse volume
Correct Answer: B
Rationale: An ejection click is not typically a feature of subaortic membrane stenosis.
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Complement system:
- A. Is activated by bacterial endotoxins by the classical pathway
- B. Reduced C3 and C4 are usual findings in acute glomerulonephritis
- C. Hereditary angioneurotic oedema is caused by deficiency of one of the components of the classical pathway of the system
- D. Is part of humoral immunity
Correct Answer: D
Rationale: The complement system is a key component of humoral immunity, playing a role in the immune response to pathogens.
Toxoplasma gondii infection in humans causes:
- A. Oral ulcers
- B. Cervical lymphadenopathy
- C. Microcephaly
- D. Chorioretinitis
Correct Answer: D
Rationale: Chorioretinitis is a hallmark of congenital toxoplasmosis, leading to vision impairment.
Regarding cisapride:
- A. It is licensed for use in children
- B. Fatal arrhythmias have been reported
- C. Concurrent administration with erythromycin is not advised
- D. It commonly causes constipation
Correct Answer: B
Rationale: Fatal arrhythmias have been reported: Cisapride, a gastrointestinal prokinetic agent, has been linked to fatal arrhythmias, particularly when combined with certain drugs like erythromycin.
What should the school nurse recommend when encouraging a heart-healthy diet for a child with high cholesterol?
- A. A fat intake reduction of 5-10% of total calories
- B. A fat intake reduction of 10-15% of total calories
- C. A fat intake reduction of 15-20% of total calories
- D. A fat intake reduction of 25-35% of total calories
Correct Answer: D
Rationale: For a child with increased cholesterol, a fat reduction of 25-35% of total calories with less than 75 saturated fat and less than 200 mg of cholesterol per day is advised.
An infant aged 16 months was referred for assessment of suspected mental retardation. Which of the following findings is/are outside the normal range?
- A. He does not scribble spontaneously with pencil on paper
- B. He does not walk alone
- C. Ma' and 'Dada' are the only recognisable words
- D. He is unable to build a tower of four cubes
Correct Answer: B
Rationale: Not walking alone by 16 months is a concern. Scribbling, limited vocabulary, and building towers are less concerning at this age.
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