RT Book, Section A1 Schwinghammer, Terry L. A1 DiPiro, Joseph T. A1 Ellingrod, Vicki L. A1 DiPiro, Cecily V. SR Print(0) ID 1178897323 T1 Intra-Abdominal Infections T2 Pharmacotherapy Handbook, 11e YR 2021 FD 2021 PB McGraw Hill PP New York, NY SN 9781260116694 LK accesspharmacy.mhmedical.com/content.aspx?aid=1178897323 RD 2024/03/29 AB Intra-abdominal infections are those contained within the peritoneum or retroperitoneal space. Two general types of intra-abdominal infections are discussed throughout this chapter: peritonitis and abscess.Peritonitis is defined as the acute, inflammatory response of peritoneal lining to microorganisms, chemicals, irradiation, or foreign body injury. It may be classified as either primary, secondary, or tertiary. With primary peritonitis, an intra-abdominal focus of disease may not be evident. In secondary peritonitis, a focal disease process is evident within the abdomen. Tertiary peritonitis occurs in critically ill patients and is infection that persists or recurs at least 48 hours after apparently adequate management of primary or secondary peritonitis.An abscess is a purulent collection of fluid separated from surrounding tissue by a wall consisting of inflammatory cells and adjacent organs. It usually contains necrotic debris, bacteria, and inflammatory cells.