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. Rather than subject everyone with an elevated PSA to a biopsy, some urologists measure free PSA in patients with a total PSA level between 4 ng/ml and 10 ng/ml. Studies have shown that men with a total PSA in this
No special preparation is needed for PSA Free. Inform your doctor if you are on any medications or have any underlying medical conditions or allergies before undergoing PSA Free. Your doctor depending on your condition will give specific instructions.
|MALE||All age groups||Normally, Free PSA is < 25% of total|
|MALE||All age groups||< 0.10 indicates 49-65% risk of prostate cancer|