Spontaneous bacterial peritonitis classification

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Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1] ; Associate Editor(s)-in-Chief: Aditya Govindavarjhulla, M.B.B.S. [2]

Classification

Spontaneous bacterial peritonitis is one of the variants of ascitic fluid infections. Classification of ascitic fluid infections is based on neutrophil count and culture report.

Type of Infection	Bacterial Culture Report	Neutrophil Count (per mm3)
Spontaneous bacterial peritonitis	Positive for one organism	>250 cells
Culture negative neutrocytic ascites	Negative	>250 cells
Monomicrobial nonneutrocytic bacterascites	Positive for one organism	<250
Secondary bacterial peritonitis	Positive for many microbes	>250
Polymicrobial bacterascites	Positive for many microbes	<250