Pharmacology All India exam 7c1a0fd9 A term baby girl has two episodes of bile-stained emesis at 24 hours after bih. There is a history of excessive amniotic fluid volume. The most appropriate diagnostic test is? NOT RELATED - MEDICINE A Blood culture B Barium swallow and Gastrointestinal X rays C CT scan of head D Neurosonogram High-Yield Explanation .