Mild Pallor in Pediatrics — Case | Pediatric Heme/Onc | SMLE Q#617
SMLE Question #617
Pediatrics
Pediatric Heme/Onc
Last updated: February 2026
A 12-hour-old term male newborn develops marked jaundice with mild pallor. By 36 hours of life, the jaundice has progressed on visual assessment. Pregnancy and delivery were uncomplicated, and there is no known maternal–fetal blood group incompatibility. He is hemodynamically stable. Examination shows jaundice to the lower abdomen and mild pallor, with no documented hepatosplenomegaly or dysmorphic features. Which of the following is the most appropriate next laboratory test?
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