Q: When will you see free gas under the diaphragm and not panic?
A: In a post-op patient (up to 4-8 weeks), or one with a stoma or peritoneal dialysis catheter.

Q2: A patient with a gastrectomy 2 weeks ago presents in A&E with severe abdominal pain. You suspect anastomatic breakdown, but how do you confirm with plain Xrays?
A: Click here to submit your answer.