Diagnostic paracentesis of the acute abdomen.
D000006:Abdomen, Acute / Q000175:diagnosis*; D002648:Child; D005122:Exudates and Transudates / Q000175:diagnosis*; D006801:Humans; D001239:Inhalation; D008297:Male; D008875:Middle Aged; D010195:Pancreatitis / Q000175:diagnosis*; D010437:Peptic Ulcer / Q000175:diagnosis*; D010538:Peritonitis / Q000175:diagnosis*