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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
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 . . . 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
Prostate Cancer Screening Tests | American Cancer Society The percent-free PSA is lower in men who have prostate cancer than in men who do not If your PSA test result is in the borderline range (between 4 and 10), the percent-free PSA might be used to help decide if you should have a prostate biopsy
What is the difference between PSA and free PSA? The free-PSA test measures the percentage of unbound PSA; the PSA test measures the total of both free and bound PSA Prostate cancer can raise PSA levels, but so can other conditions These include an enlarged prostate, prostatitis, and advancing age In fact, studies have shown that about 75% of men with an elevated PSA do not have prostate
Use of the Percentage of Free Prostate-Specific Antigen to . . . Context — The percentage of free prostate-specific antigen (PSA) in serum has been shown to enhance the specificity of PSA testing for prostate cancer detection, but earlier studies provided only preliminary cutoffs for clinical use Objective — To develop risk assessment guidelines and a cutoff