Interpreting PSA levels involves considering several factors:
Age-Specific PSA Ranges: PSA levels tend to increase with age. For men aged 40-49, a PSA level up to 2.5 ng/mL may be considered normal, whereas for men aged 70-79, levels up to 6.5 ng/mL might be normal. PSA Velocity: This is the rate at which PSA levels increase over time. A rapid increase in PSA levels may indicate a higher risk of prostate cancer. PSA Density: This measures PSA concentration relative to the volume of the prostate. A higher PSA density can indicate a greater likelihood of prostate cancer. Free vs. Bound PSA: PSA exists in the blood in two forms: free and bound. A lower ratio of free to total PSA can indicate a higher likelihood of prostate cancer.
