Food protein-induced enterocolitis syndrome is characterized by all the following EXCEPT

Correct Answer: D

Rationale: Soy protein-based formula can also trigger symptoms in food protein-induced enterocolitis syndrome, making it a poor treatment choice.

Correct Answer: C

Rationale: Hirschsprung disease is caused by the absence of ganglion cells in the distal colon, leading to functional obstruction, delayed meconium passage, and bilious vomiting. Diagnosis is confirmed with a rectal biopsy.

Correct Answer: B

Rationale: Amphetamine intoxication matches these symptoms, including autonomic hyperactivity, psychosis, and cardiovascular effects.

Correct Answer: C

Rationale: Severe coarctation of the aorta leads to heart failure in newborns due to obstructed systemic blood flow and increased left ventricular workload.

Correct Answer: C

Rationale: Croup is more common in males, affecting young children with a characteristic barking cough and stridor. Parainfluenza virus is the leading cause, with peak incidence around 6 months to 3 years.