text: Peritonitis may be classified according to the etiology into 3 subtypes: primary, secondary, and tertiary peritonitis.
option_0: Peritonitis classification
option_1: Ascites classification
option_2: Peritonitis definition
option_3: Secondary peritonitis classification
option_4: Peritonitis laboratory findings
option_5: Ascites laboratory findings
option_6: Spontaneous bacterial peritonitis classification
option_7: Appendicitis classification