complexed prostate-specific antigen (cPSA) test

(redirected from complexed prostate-specific antigen cPSA test)

complexed prostate-specific antigen (cPSA) test

a serum test to detect PSA complexed to α1-antichymotrypsin; cPSA appears to be more specific for detection of prostate cancer at low total levels of PSA than measurement of total PSA and free:total PSA ratios.