Diagnostic paracentesis in the acute abdomen.
D000006:Abdomen, Acute / Q000175:diagnosis*; D000007:Abdominal Injuries / Q000175:diagnosis; D000293:Adolescent; D000328:Adult; D000368:Aged; D002648:Child; D003937:Diagnosis, Differential; D005260:Female; D005767:Gastrointestinal Diseases / Q000175:diagnosis; D006471:Gastrointestinal Hemorrhage / Q000175:diagnosis; D006801:Humans; D007416:Intestinal Perforation / Q000175:diagnosis; D008297:Male; D008875:Middle Aged; D011677:Punctures