Prostrate Specific Antigen (PSA) Total
The cells of the prostate gland produce Prostate-Specific Antigen (PSA). It is produced by both noncancerous and cancerous tissues of the prostate gland. Low levels of this protein circulated in the blood. Prostate-Specific Antigen (PSA) total test measures the levels of PSA in the blood.
Why is the test ordered?
It is a useful screening test for prostate cancer. The test may also be recommended for monitoring treatment.
When is the test ordered?
Prostate cancer screening is recommended every year for men aged 55 to 70 years, even if they are not at risk or without any of the apparent risk factors. The test may also be recommended for men age around the age of 40 to 45 years if they fall under a high-risk category owing to a family history of prostate cancer or due to any particular ethnic propensity.
How is the sample collected?
A blood sample from a vein in the arm is collected.
How to prepare for the test?
The person, on whom the test is to be conducted, should inform the doctor about whether he has undergone any rectal examination, prostate surgery or prostate needle biopsy in the past few weeks or about any urinary tract infection or prostate infection that he has been suffering persistently for a long time. In addition to this, the doctor should also be informed of any medications that the patient is on, and all his instructions must be followed explicitly.