Skeeter syndrome is a large local reaction to stinging and biting insects. Of the following, the TRUE statement is

Correct Answer: D

Rationale: Skeeter syndrome is a hypersensitivity reaction to mosquito saliva, presenting as exaggerated local swelling and inflammation, often mistaken for infections like erythema nodosum.

Correct Answer: A

Rationale: Pulmonary stenosis presents with an ejection systolic murmur, systolic click, and right ventricular hypertrophy on X-ray.

Correct Answer: B

Rationale: Diarrhea leads to metabolic acidosis with a normal anion gap due to excessive bicarbonate loss in stool. This type of acidosis is known as hyperchloremic acidosis, where chloride replaces lost bicarbonate.

Correct Answer: B

Rationale: Coarctation of the aorta typically causes weak femoral pulses but does not affect the right brachial pulse significantly, as the narrowing is usually distal to the right subclavian artery.

Correct Answer: B

Rationale: Apnea is a common respiratory problem in premature infants due to immaturity of the respiratory control centers in the brain. The other conditions are also seen but are less specific to prematurity.