24 Hours in Pediatrics — Case | Pediatric Endocrinology | SMLE Q#1092

SMLE Question #1092

Pediatrics Pediatric Endocrinology
Last updated: February 2026
A 3-day-old term male newborn has poor feeding, vomiting, lethargy, and fewer wet diapers for 24 hours. He is ill-appearing, hypotonic, and has a weak suck. Parents report an unusual urine odor. Which of the following is the most likely diagnosis?

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