p-aminohippuric acid clearance

p-a·mi·no·hip·pu·ric acid clearance

(pē′ə-mē′nō-hə-pyo͝or′ĭk)n. A test to determine renal plasma flow using p-aminohippuric acid which, if injected intravenously to achieve low plasma concentrations, is almost totally cleared by the kidneys.