PSA
Alternate Names : Prostate-Specific Antigen
DefinitionThis is a test that measures the amount of PSA (prostate-specific antigen) in the blood.
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Why is the Test Performed?
This test is performed to detect the presence of PSA.
PSA is a glycoprotein (a protein with a sugar attached) found in prostatic epithelial cells. It can be detected at a low level in the blood of all adult men.
The PSA level is greatly increased in most men with prostatic cancer, but can also be increased somewhat in other disorders of the prostate.
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