prostate-specific antigen test
A blood test that measures the level of prostate-specific antigen (PSA), a substance produced by the prostate and some other tissues in the body. Increased levels of PSA may be a sign of prostate cancer.
Online Medical Reviewer:
Louise Akin, RN, BSN
Online Medical Reviewer:
Daphne Pierce-Smith, RN, MSN, FNP, CCRC
Last Review Date:
4/12/2009
Licensed PDQ® from the National Cancer Institute (NCI).