If one senior citizen has to go for prostate test ,PSA OR FPSA PREFERABLE AND WHAT IS DIFFERENCE IN TWO?
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ONE is total other is free.
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FPSA IS PREFERABLE. PSA, a protein produced by prostate gland cells, circulates through the body in two ways: either bound to other proteins or on its own. PSA traveling alone is called free PSA. The free-PSA test measures the percentage of unbound PSA; the PSA test measures the total of both free and bound PSA. PSA testing has a number of limitations. The PSA test is known to have a high rate of false positives. It?s not uncommon for a man to have prostate cancer when his PSA is below the limits that indicate there might be cancer. About 75 percent of men who have an elevated PSA do not have cancer. Normal PSA ranges were established primarily on white males, though PSA levels may vary depending on a man?s ethnicity. There can be changes in PSA levels if they?re tested by a different lab or technicians use different testing methods. If your total PSA levels are high, it?s often a good next step to have a free PSA test rather than going straight to a biopsy. Ultimately, though, it?s a question that you and your doctor should discuss.
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