]> 2026-07-31T11:51:55+00:00 WBR0524 0 en Abdominal CT Abdominal X-ray '''Correct''' : An upright chest film and abdominal films should be examined for free air. Careful interpretation can detect diagnostic free air in most cases. If free air is found, no additional diagnostic studies are necessary. Gastrodeodenogram '''Incorrect''' : If a CT is not available or is not needed for clinical diagnosis, a carefully performed gastroduodenogram using water soluble contrast is likely to detect most macro-leaks. Leakage of water soluble contrast (Gastrografin) is a useful confirmatory. test. Serum lipase Abdominal USG Emergency Room A 65 yr old male comes to the emergency department with severe upper abdominal pain. The pain started suddenly and is of 9/10 on pain grading scale. The pain is radiating to back and aggravated upon any movement. His past history is significant for peptic ulcer disease and is on H2 blockers and proton pump inhibitors. He is a known hypertensive on thiazide medications. He doesn’t smoke or consume alcohol. He denies any bloody vomit, constipation, diarrhea and black stools. On examination pulse is 110/min and BP is 110/60 mmHg. Abdomen is markedly tender and he does not allow further investigations. Cardiovascular and respiratory examinations are normal. Lab investigations show hemoglobin and hematocrit of 13 g/dl and 36, respectively, Na:142 mEq/L, K : 3 mEq/L, Cl: 105 mEq/L, Bi: 24 mEq/L, BUN: mg/dl, glucose: 110 mg/dl, Ca: 10mg/dl and elevated amylase levels. Which of the following is the diagnostic test of choice in this patient? B Gastrointestinal 2020-10-28T00:51:19Z 2459150.5356366 WBR0524