This document provides guidance on abdominal percussion techniques for evaluating various organs and conditions. It discusses how percussion can detect gas, fluid, and confirm the location of organs. Specific techniques are described for evaluating the liver, spleen, kidneys, urinary bladder, ascites, and other abdominal features. Percussion is most accurate for the lower liver border and can help identify abnormalities, detect dullness associated with various conditions, and assess organ size and borders. Proper patient positioning and techniques like shifting dullness are emphasized to accurately evaluate abdominal contents using percussion.