We offer access to questions covering the CEM database and LEK questions from 2008.
We offer access to archived PES questions from the CEM website and unpublished questions from the latest 5 years for selected specializations.
129.
A 6-month-old infant was admitted to emergency dept. because of inexhaustible cry and anxiety persisting for 3 hours. The parents observed leg curling and pale skin. The child refused to take food and vomited twice since the morning. Physical examination revealed abdominal bloating and some palpable mass in the abdomen, normal body temperature, and a trace of “currant jelly-like” stool on a diaper. What is the most likely diagnosis?