Regarding cystic fibrosis:
- A. It is inherited as autosomal recessive
- B. There is increased risk of bronchial carcinoma in late adulthood
- C. Biliary cirrhosis is a recognised feature
- D. In neonates, intestinal obstruction may be the first presentation
Correct Answer: A
Rationale: Cystic fibrosis is an autosomal recessive disorder caused by mutations in the CFTR gene.
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Regarding cafe-au-lait spots:
- A. They can be normal findings
- B. They are found in tuberous sclerosis
- C. When present in a child, > 4 spots each > 0.5 cm, is diagnostic of neurofibromatosis type II
- D. Typical appearance in neurofibromatosis is of a smooth border
Correct Answer: A
Rationale: Cafe-au-lait spots can be a normal variant and do not always indicate an underlying pathology.
Hypertrophic obstructive cardiomyopathy
- A. Causes LV outflow tract obstruction
- B. Occurs after adenoviral infection
- C. Commonly occurs in infancy
- D. Double apical impulse
Correct Answer: A
Rationale: Hypertrophic obstructive cardiomyopathy primarily causes left ventricular outflow tract obstruction.
SA 14-14-2 Vaccine for Japanese encephalitis is
- A. Live attenuated
- B. Vero cell derived inactivated
- C. Mouse-brain derived inactivated
- D. Live recombinant
Correct Answer: A
Rationale: The SA 14-14-2 vaccine is a live attenuated vaccine used for Japanese encephalitis.
ECG
- A. Bifid P waves in large VSD
- B. Complete Ht block in cyanotic attacks of fallots
- C. RBBB in Ebstein anomaly
- D. Right axis deviation in tricuspid atresia
Correct Answer: C
Rationale: In Ebstein's anomaly, right bundle branch block (RBBB) is commonly seen on ECG.
Typical features of Down's syndrome include:
- A. Brachycephaly
- B. Hypotonia
- C. Male infertility
- D. Increased a-fetoprotein in amniotic fluid
Correct Answer: B
Rationale: Hypotonia is a key feature of Down's syndrome, often leading to delayed development and muscle weakness.
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