Failure to pass meconium within 48 hrs of bih in a newborn with no obvious external abnormality should lead to the suspicion of-
Ans. is 'c' i.e., Congenital aganglinosis o Read what Nelson says about Hirschsprung's disease (Congenital aganglinosis). o "Ninety nine percent of full term infants pass meconium within 48hrs of bih. Hirschsprung disease should be suspected in any full term infant with delayed passage of stool".
Anal atresia
Congenital pouch colon
Congenital aganglinosis
Meconium ileus