Cyanotic congenital heart disease in newborn with pulmonary oligemia and left ventricular hypertrophy is suggestive of

Correct Answer: B

Rationale: Tricuspid atresia results in pulmonary oligemia due to reduced pulmonary blood flow. The left ventricle compensates for systemic circulation, leading to hypertrophy, a hallmark of this condition.

Correct Answer: B

Rationale: Mosquitoes are not a common cause of insect sting anaphylaxis, unlike honeybees, yellow jackets, wasps, and fire ants.

Correct Answer: D

Rationale: Blanching after intradermal histamine injection is not a feature of atopic dermatitis. Other options are common findings.

Correct Answer: D

Rationale: Chest compressions in infants are done using 2 fingers in the center of the chest, ensuring adequate depth and avoiding excessive pressure on fragile ribs.

Correct Answer: D

Rationale: Pediatrician concern alone may not be sufficient to raise suspicion without corroborating evidence from parents, caregivers, or other involved parties.