RT Book, Section A1 Hwang, James Q. A1 Huang, Calvin A2 Carmody, Kristin A. A2 Moore, Christopher L. A2 Feller-Kopman, David SR Print(0) ID 56301825 T1 Chapter 19. Ultrasound for Paracentesis T2 Handbook of Critical Care and Emergency Ultrasound YR 2011 FD 2011 PB The McGraw-Hill Companies PP New York, NY SN 978-0-07-160489-5 LK accessanesthesiology.mhmedical.com/content.aspx?aid=56301825 RD 2023/03/31 AB Ascites is the accumulation of free fluid in the peritoneal cavity and is typically caused by portal hypertension due to hepatic failure. Other common causes of ascites include renal failure, congestive heart failure, infection, or malignancy. Ascites may be extremely uncomfortable when large amounts of fluid are present, and may be life threatening if it becomes infected or compromises respiratory efforts or venous return. Physical examination is not sensitive for ascites and cannot reliably determine the optimal location for drainage. Bedside ultrasound can reliably detect ascites and aid in the removal of fluid.