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PSA, % Free - Lab Results explained | HealthMatters. io PSA, % FREE: This is the ratio of free PSA to total PSA, expressed as a percentage It is calculated by dividing the free PSA by the total PSA and multiplying by 100 This percentage is particularly useful in improving the specificity of PSA testing for prostate cancer
What Causes Low Free PSA Levels? - WebMD A low free PSA level can be a sign that you’re at higher risk for prostate cancer Find out what it is and how it’s measured
Prostate-Specific Antigen (PSA), Total and Free, Serum - Mayo . . . Testing Algorithm Total prostate-specific antigen (PSA) and free PSA are performed and reported on every specimen If the initial total PSA concentration is between 4 0 and 10 0 ng mL, then the percent free PSA result will be calculated and reported
Percent Free Prostate-Specific Antigen: Entering a New Era in . . . These findings were confirmed subsequently by Christensson and coworkers 24 These investigators, however, suggested that the free-to-total proportion or percent free PSA, which is lower in patients with cancer, was a more sensitive or accurate means of discriminating between benign and malignant prostate disease
Percent-Free PSA | Shipley Prostate Cancer Research Center Percent-Free PSA is a measure of the percent of PSA in the blood that is floating freely compared to PSA that is attached to another protein Different types of PSA tests may create a fuller picture of a patient’s condition prior to diagnosis