There is no level of PSA (prostate-specific antigen) in the blood that is considered normal, according to the National Cancer Institute. However, it is typical for higher levels to be indicative of prostate cancer, parti... More » Health Diagnostics & Imaging

According to WebMD, PSA stands for prostate-specific antigen, a substance produced by the prostate gland. High levels suggest a risk of prostate cancer, and levels between 2.5 and 4 nanograms per milliliter of blood are ... More » Health Medical Ranges & Levels

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 » Health Medical Ranges & Levels
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Unless specifically requested by a doctor, fasting is typically not required prior to a prostate-specific antigen, or PSA, blood test, according to Lab Tests Online. If fasting is required, patients must consume no food ... More » Health Diagnostics & Imaging

The PSA blood test shows the quantity of a specific protein present in the blood, according to the National Cancer Institute. It is used for prostate cancer screening and to monitor prostate health. PSA is made by the pr... More » Health Diagnostics & Imaging

Abnormal levels of PSA, or prostate-specific antigen, generally do not exist, states the National Cancer Institute. Historically, PSA levels above 4.0 nanograms per milliliter often required a prostate biopsy to test for... More » Health Medical Ranges & Levels

Prostate-specific antigen (PSA) levels about 2.5 units higher than the lowest measure after brachytherapy indicates a recurrence of prostate cancer. However, a measure of PSA does not definitively indicate the presence o... More » Health Diagnostics & Imaging