The PSA blood test is often the first step in screening for prostate cancer. It is included in a two-part screening process that also includes the digital rectal exam (DRE). Since the PSA is not prostate-cancer specific, abnormal results are further, or an elevated PSA is not a diagnosis for cancer. Things like evaluating a patient, knowing their medical and family history, following a PSA trend, as well as the velocity at which PSA changes can help a physician make an informed decision about what an elevated PSA might mean. Because PSA tests are not necessarily straightforward, simple or easy diagnostic tools, knowing the risk factors and tracking the changes in PSA can help you and your physician interpret a PSA properly.
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