Normal prostate-specific antigen levels go up to 2.5 nanograms per milliliter for ages 40 to 49, 4.0 nanograms per milliliter for 50 to 59, 4.5 nanograms per milliliter for 60 to 69 and 6.5 nanograms per milliliter for 7... More »

Blood levels of the prostate-specific antigen increase with age. To reflect this phenomenon, the reference ranges for PSA levels in both healthy men and men at risk of prostate cancer increase with age, according to the ... More » Health Medical Ranges & Levels

The normal number for the Ra PSA blood test varies based on the age of the patient, according to WebMD. The PSA blood test measures the blood's level of prostate-specific antigen, and normal levels increase with age. More » Health Medical Ranges & Levels

Normal levels of total PSA, or prostate-specific antigen, increase from less than 2.0 nanograms per milliliter under age 40 to less than 7.2 nanograms per milliliter above age 80, says Mayo Clinic. If the PSA level is hi... More »

Normal levels of prostate-specific antigen, or PSA, range from 1.0 to 4.0 nanograms per milliliter of blood, according to MedicineNet. The normal level may, however, be higher in older men and lower in young men because ... More »

Low levels of PSA, or prostate-specific antigen, are considered desirable, since they indicate a lower risk for prostate cancer; readings below 4 nanograms per milliliter are considered normal, according to Health Magazi... More »

PSA levels above 4.0 nanograms per milliliter are considered to be elevated, according to the National Cancer Institute. This figure does not indicate whether or not an individual has prostate cancer, as prostate cancer ... More » Health Medical Ranges & Levels