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Recognised features of anorexia nervosa include:
- A. T-wave inversion on ECG
- B. Hypocholesterolaemia
- C. Peripheral oedema
- D. Sinus bradycardia
Correct Answer: D
Rationale: Sinus bradycardia, a slower than normal heart rate, is a recognized feature of anorexia nervosa due to the body's adaptation to starvation.
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Regarding a supracristal VSD, the following are true EXCEPT
- A. incidence is higher in Asian children
- B. complicated by aortic insufficiency in 50-90% of patients
- C. aortic insufficiency is most often not recognized until late in the lst decade of life
- D. murmur of a supracristal VSD is usually heard at the mid to upper left sternal border
Correct Answer: D
Rationale: Closure of asymptomatic supracristal VSDs at the time of diagnosis is not recommended.
Xanthomas within palmar creases are seen characteristically in
- A. Pseudoxanthoma elasticum
- B. Type II hyperlipoproteinemia
- C. Type IIl hyperlipoproteinemia
- D. Hypothyroidism
Correct Answer: C
Rationale: Xanthomas within palmar creases are characteristic of Type III hyperlipoproteinemia.
A 12-year-old male tries out for a middle school hockey team. He has a history of a heart murmur as an infant, but the doctor thought it would go away. During the tryout, he experiences severe dyspnea and becomes light-headed. At your office, he has a normal rhythm, pulse, and blood pressure and is no longer dizzy. There is a grade 4/6 systole ejection murmur that radiates to the neck. There is also an ejection click. An ECG reveals left ventricular hypertrophy. The next approach to his management includes
- A. chest x-ray
- B. exercise test
- C. digitalization
- D. echocardiography
Correct Answer: D
Rationale: Echocardiography is essential to evaluate the severity of aortic stenosis and its effects on the heart.
The following features are more suggestive of biliary atresia rather than neonatal hepatitis in an infant 6 weeks of age:
- A. Hepatomegaly
- B. Prolonged INR (prothrombin time)
- C. Biopsy specimen showed proliferation of bile ductules, periportal fibrosis and bile lakes
- D. HillA scan reveals delayed uptake and excretion of the contrast material
Correct Answer: C
Rationale: Proliferation of bile ductules, periportal fibrosis, and bile lakes on biopsy are hallmark features of biliary atresia.
Indications for an exchange transfusion include:
- A. ABO incompatibility
- B. Acute chest syndrome
- C. Sepsis
- D. Polycythaemia
Correct Answer: A
Rationale: Exchange transfusion is indicated in conditions like ABO incompatibility to prevent severe hemolytic disease in newborns. Acute chest syndrome sepsis polycythaemia and sickle nephropathy are not typical indications for exchange transfusion.