Pediatrics Failure to pass meconium within 48 hrs of bih in a newborn with no obvious external abnormality should lead to the suspicion of- A Anal atresia B Congenital pouch colon C Congenital aganglinosis D Meconium ileus 💡 Explanation Failure to pass meconium within 48 hrs of bih in a newborn with no obvious external abnormality should lead to the suspicion of- ✓ Correct Answer: C. Congenital aganglinosis