text: An X-ray is the initial investigation performed in the diagnosis of bowel<unk> . Findings on an X-ray suggestive of bowel<unk>  include dilated bowel loops with air-fluid level, distal collapsed bowel, absence of gas in the abdomen or alternatively, "string of pearls" sign indicating trapped flatus.
option_0: Bowel obstruction X-ray
option_1: Ileus physical examination
option_2: Mesenteric ischemia physical examination
option_3: Gastrointestinal perforation x-ray
option_4: Bowel obstruction physical examination
option_5: Ischemic colitis physical examination
option_6: Meckel's diverticulum physical examination
option_7: Short bowel syndrome CT scan