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www.reference.com/world-view/psa-levels-range-chart-ee1f0e705b505e50

As of 2015, the PSA levels range chart is a guide that doctors previously commonly used to screen men for prostate cancer, reports the National Cancer Institute. The PSA levels range chart is controversial as prostate-specific antigen levels are not always indicative of cancer.

www.reference.com/article/can-score-chart-psa-test-dd64cb8713b99062

MedicineNet.com, a website operated by WebMD, provides a chart of healthy PSA concentration values based on age and race. The normal range of PSA concentration values is 1.0 to 4.0 nanograms per milliliter, but the normal range tends to increase with age.

www.reference.com/world-view/causes-high-psa-numbers-f1c8eb5480de8f57

Elevated PSA levels can be caused by prostate cancer, an enlarged prostate, inflammation of the prostate, a urinary tract infection, advanced age and ejaculation, explains Everyday Health. Inserting a catheter into the bladder, a prostate or bladder exam, and a digital rectal exam also elevate PSA l

www.reference.com/article/difference-between-psa-total-psa-5fd6bfc77023780c

Free PSA, or prostate-specific antigen, is PSA circulating unbound and by itself within a man's body. Total PSA is the sum of unbound PSA and PSA bound to other substances circulating within a man's body, according to MedicineNet.com.

www.reference.com/article/high-psa-level-76ac943729f7f1e6

The prostate-specific antigen, or PSA, test measures the level of the prostate-specific antigen present in a man's bloodstream; PSA is a protein made by the prostate gland. Elevated PSA blood levels may indicate prostate cancer, though other conditions also cause high PSA levels, according to the Na

www.reference.com/article/psa-level-high-b3bac5eb16736623

An elevated PSA level may indicate prostate cancer, enlarged prostate, or urinary tract or prostate infection, according to MedlinePlus. Patients who have recently had a urinary catheter inserted or who have had tests or procedures involving the bladder or prostate may also have an elevated PSA leve

www.reference.com/article/high-psa-result-830daa6305e4a4f8

There is no normal or abnormal level of prostate-specific antigen, or PSA, in the blood, according to the National Cancer Institute. Historically, doctors consider levels of 4 nanograms per milliliter of blood to be normal.

www.reference.com/article/psa-test-b2629a83c4dd769b

A prostate-specific antigen, or PSA, test is intended to measures the level of PSA in the blood. Prostate-specific antigen is a protein that is produced in the prostate gland. This test is carried out by a doctor when trying to diagnose the presence of cancer.

www.reference.com/article/normal-psa-f1bbf67c4ec48026

According to the National Cancer Institute, a normal prostate-specific antigen result is generally considered to be below 4 nanograms per milliliter. Doctors often recommend a prostate biopsy for men with higher PSA levels to determine whether prostate cancer is present.

www.reference.com/article/normal-psa-number-c3b5ae1aed77c6de

There isn't a prostate-specific antigen level that is considered normal or abnormal, explains the National Cancer Institute. Generally, higher PSA levels increase the likelihood of prostate cancer, or if PSA results rise continuously over time, the risk for cancer also increases.