All of the following are useful indicators regarding the severity of Tetralogy of Fallot
- A. Systemic arterial oxygen saturation
- B. Intensity of outflow murmur
- C. Functional class
- D. Right ventricular outflow gradient by echocardiography
Correct Answer: B
Rationale: The intensity of the outflow murmur is not a reliable indicator of the severity of Tetralogy of Fallot.
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In the treatment of asthma, inhaled corticosteroids:
- A. Relieve acute symptoms
- B. Prevent long-term symptoms
- C. Cause airway constriction
- D. Are contraindicated in pregnancy
Correct Answer: B
Rationale: Inhaled corticosteroids are used in asthma management to prevent inflammation and control long-term symptoms, though they do not relieve acute attacks.
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.
Skin lesions characteristically associated with CNS problems:
- A. Dermatitis herpetiformis
- B. Vitiligo
- C. Strawberry angioma on face
- D. Axillary freckling
Correct Answer: D
Rationale: Axillary freckling
Hypoglycemia in an infant is defined as whole blood glucose level less than
- A. 40 mg/dl
- B. 50 mg/dl
- C. 60 mg/dl
- D. 80 mg/dl
Correct Answer: A
Rationale: Hypoglycemia in infants is defined as a whole blood glucose level less than 40 mg/dl, as this threshold is critical for brain function.
Down syndrome and VSD
- A. Doesn't close spontaneously as in children without downs
- B. Inaudible murmur is a characteristic feature / Murmur is not audible
- C. Pulmonary Hypertension is a late complication
- D. If no murmur, condition need not be investigated
Correct Answer: C
Rationale: Pulmonary hypertension is a known late complication in Down syndrome with VSD.