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The Free PSA (Prostate-Specific Antigen) Test is a blood test that measures the levels of unbound PSA in the bloodstream. Prostate-Specific Antigen is a protein produced by prostate gland cells. This test is necessary to evaluate the concentration of free PSA, which is not bound to other proteins, in relation to the total PSA level.
8-12 hours fasting is mandatory
24 hours Result
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Redcliffe Labs₹850
The Free PSA (Prostate-Specific Antigen) Test is a blood test that measures the levels of unbound PSA in the bloodstream. Prostate-Specific Antigen is a protein produced by prostate gland cells. This test is necessary to evaluate the concentration of free PSA, which is not bound to other proteins, in relation to the total PSA level.
Book a test at your preferred lab by selecting home sample collection
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Receive your lab reports within 24 hours over email
If free PSA is present in the blood, is it good or bad?
Free PSA in the blood is generally considered a positive sign. It indicates that a portion of the prostate-specific antigen is unbound and not attached to other substances. Higher levels of free PSA in relation to total PSA may suggest a lower risk of prostate cancer. However, free PSA levels should be interpreted with other clinical factors and diagnostic tests to assess the individual's situation.
Which is better, total PSA or free PSA?
Total PSA and free PSA serve different purposes in prostate cancer screening. While total PSA provides an overall measurement of prostate-specific antigen in the blood, free PSA specifically measures the unbound fraction. The ratio of free PSA to total PSA can aid in distinguishing between benign conditions and prostate cancer. However, the choice of which marker is better depends entirely on individual factors and should be evaluated by a doctor.