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Prostate Cancer Guide. Prostate-Specific Antigen (PSA) Blood Test. Medically Reviewed by Jabeen Begum, MD on April 05, 2024. Written by Matt McMillen, Lori M. King, PhD. What Is Prostate-Specific...
The PSA test can detect high levels of PSA that may indicate the presence of prostate cancer. However, many other conditions, such as an enlarged or inflamed prostate, also can increase PSA levels. Therefore, determining what a high PSA score means can be complicated.
Normal PSA Levels: 0 - 4 ng/mL. Slightly Elevated PSA: 4 - 10 ng/mL. Moderately Elevated PSA: 10 - 20 ng/mL. Highly Elevated PSA: 20+ ng/mL. PSA Levels by Age Chart (Free to Total Ratio)
PSA levels can be measured in the bloodstream, and elevated PSA levels can sometimes be a symptom of prostate cancer. So, this antigen gives doctors a starting point to evaluate your risk of having that disease. But what constitutes a normal PSA level? Why might your PSA levels be elevated?
The PSA test measures the level of PSA in the blood. For this test, a blood sample is sent to a laboratory for analysis. The results are usually reported as nanograms of PSA per milliliter (ng/mL) of blood.
PSA levels can be detected in the blood, urine, or semen. Blood PSA testing is used as a screening test for prostate cancer. Prostate-specific antigen (PSA) levels by age remain the same across most populations. A PSA level above 4.0 ng/mL in any age group must be investigated.
Elevated prostate-specific antigen (PSA) levels can be a sign of prostate cancer. They can also indicate noncancerous conditions, such as prostate enlargement or inflammation. A healthcare provider will work with you to determine your next steps if you have high PSA levels. Urology Care for Children. Make an Appointment.