Diagnosis is made, first by eliciting the presence of ascites, then by looking for signs and symptoms consistent with peritoneal irritation, and finally by confirmation with peritoneal fluid testing. com.bmj.content.model.Caption@48f683da[Figure caption and citation for the preceding image starts]: Algorithm for the diagnosis of spontaneous bacterial peritonitis (absolute neutrophil count [ANC]; lactate dehydrogenase [LDH]; carcinoembryonic antigen [CEA])From the personal collection of Brian Chinnock, MD; used with permission [Citation ends].

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