Pediatrics A neonate at 48 hours of bih with a history of non passage of meconium. Next step in evaluation will be ? A Lower GI study B Manometry C Sweat chloride levels D CFTR mutation analysis 💡 Explanation A neonate at 48 hours of bih with a history of non passage of meconium. Next step in evaluation will be ? ✓ Correct Answer: A. Lower GI study