Nokea
Uncommon complications of severe falciparum malaria are:
- A. Stroke
- B. Anaemia
- C. Hepatitis
- D. Jaundice
Correct Answer: A
Rationale: The correct answer is A because stroke is an uncommon complication of severe falciparum malaria. The other options (b-e) are more common complications.
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In a cyanotic spell of TOF
- A. Systemic vascular resistance is reduced
- B. Murmur disappear
- C. PO2 is reduced
- D. Right to Left shunt is Increased
Correct Answer: D
Rationale: During a cyanotic spell in Tetralogy of Fallot, there is an increased right-to-left shunting through the ventricular septal defect.
In childhood asthma:
- A. Over 90% of patients show exercise-induced bronchoconstriction
- B. Hypercapnia is the first physiological disturbance in status asthmaticus
- C. Infants are unresponsive to bronchodilators
- D. Spontaneous cure occurs before adolescence
Correct Answer: D
Rationale: Spontaneous cure before adolescence is a recognized phenomenon in childhood asthma, though not all cases resolve. Other options are incorrect: exercise-induced bronchoconstriction is common but not universal, hypercapnia occurs late in status asthmaticus, and infants do respond to bronchodilators.
All of the following are minor criteria in the latest Revised Jones criteria for rheumatic fever in moderate-high risk population except
- A. Monoarthalgia
- B. Fever with body temperature ≥ 38.5°C
- C. ESR 230 mm/hour
- D. Prolonged PR interval
Correct Answer: C
Rationale: ESR 230 mm/hour is not a minor criterion in the Revised Jones criteria for rheumatic fever.
The following statements are true regarding a screening test:
- A. Sensitivity indicates the proportion of true positives
- B. Specificity indicates the proportion of true negatives
- C. Sensitivity is inversely related to specificity
- D. Prevalence affects predictive value
Correct Answer: D
Rationale: Prevalence affects predictive value
Congenital heart disease causing cyanosis without respiratory distress include EXCEPT
- A. tricuspid atresia
- B. aortic stenosis
- C. Ebstein anomaly
- D. pulmonary atresia
Correct Answer: B
Rationale: Tricuspid atresia, Ebstein anomaly, and pulmonary atresia can cause cyanosis without respiratory distress, while aortic stenosis typically does not.