title: Diagnostic paracentesis in the acute abdomen.
mesh_terms: D000006:Abdomen, Acute / Q000175:diagnosis*; D000293:Adolescent; D001202:Ascitic Fluid; D001707:Biopsy, Needle; D002675:Child, Preschool; D006801:Humans; D008297:Male; D011677:Punctures / Q000379:methods*