Prostate specific antigen (PSA) is used in the screening of prostate cancer. Due to the high incidence of false positive, PSA testing receives a USPSTF grade of poor.
- The PSA test is a blood examination used primarily for prostate cancer screening. The prostate-specific antigen (PSA) level in your blood is determined by the test.
- The prostate is a tiny gland that resides underneath the bladder in males. Both malignant and noncancerous cells in the prostate produces the protein known as PSA.
- When the PSA level is raised but no cancer is actually present, a false-positive test result is produced.
- Anxiety-inducing test results that are falsely positive can prompt extra, potentially hazardous medical treatments like prostate biopsies.
- Prostate cancer screening tests like PSA and DRE are unreliable. The false positive and false negative rates for PSA are respectively around 70% and 20%.
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