All of the following are problems of an infant of a diabetic mother (class B) EXCEPT

Correct Answer: C

Rationale: Intrauterine growth retardation is uncommon in infants of diabetic mothers

Correct Answer: C

Rationale: The anion gap is calculated as (Na⁺ - [Cl⁻ + HCO₃⁻]) and represents unmeasured anions in plasma. It helps differentiate metabolic acidosis causes, with high values suggesting lactic acidosis or toxin ingestion.

Correct Answer: D

Rationale: Hurler syndrome is a metabolic disorder and does not typically cause generalized edema in newborns. The other conditions listed are associated with fluid accumulation and edema.

Correct Answer: D

Rationale: Early exposure to dogs has been linked to a reduced risk of atopy, possibly due to microbial diversity exposure that modulates immune responses. Other exposures listed do not provide protection.

Correct Answer: D

Rationale: Truancy is not a recognized feature of ASD.