How to Interpret the PSA Cancer Test
The prostate specific antigen test, or PSA, is a tool used to detect possible prostate cancer in men. The PSA helps detect cancer early before it advances and spreads. There are a few tips for interpreting the results of your PSA that can be used to discuss with your physician whether further testing is needed.
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Instructions
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Ask your doctor what PSA levels would be considered normal for your age and risk level. PSA levels under 4ng/mL are generally considered normal, but the 4ng/mL cutoff varies with age.
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Notice the first signs of risk. PSA levels between 4ng/mL and 20ng/mL are considered to be fair to moderate risk for having cancer. At this point, your doctor may want to do further testing.
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Be aware of high-risk PSA levels. PSA levels above 20ng/mL are considered very high risk. Your doctor will want to do further testing to determine if cancer is present and, if so, what type and how advanced.
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Keep in mind that some medications, such as Proscar, can affect your PSA level. Your doctor should take this into account when evaluating your PSA results.
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Tips & Warnings
Remember that a normal PSA does not guarantee you do not have cancer, nor does it replace other methods of screening. In this same way, a high PSA level does not mean you have cancer for certain. The PSA is only a screening tool and is not used for final diagnosis.
