You are examining an infant with multiple cutaneous hemangiomas; you suspect involvement of internal organs. The MOST common site of visceral involvement by hemangiomas is

Correct Answer: D

Rationale: Liver is the most common site of visceral involvement by hemangiomas.

Correct Answer: B

Rationale: Acute hyponatremia causes rapid water influx into brain cells, leading to cerebral edema, which can result in seizures and altered mental status.

Correct Answer: C

Rationale: Sulfonamides are a well-known cause of Stevens-Johnson syndrome, a severe hypersensitivity reaction.

Correct Answer: A

Rationale: A rapid drop in sodium levels can lead to cerebral edema. The recommended safe correction rate is ≤8 mmol/L per 24 hours to prevent osmotic demyelination and neurological damage.

Correct Answer: D

Rationale: Cardiomyopathy is not a complication of neonatal jaundice. The primary risks associated with jaundice, particularly if untreated, include kernicterus, neurological damage, and hearing loss.