The PSA test, which stands for prostate-specific antigen test, was developed by T. Ming Chu, Ph.D., DSc, Chair Emeritus of Diagnostic Immunology Research and Professor Emeritus of Urologic Oncology. His research in the 1970s led to the discovery of PSA and the subsequent development of the test. In 1986, the FDA approved the PSA test for monitoring the progression of prostate cancer in men who had already been diagnosed with the disease. Later, in 1994, the FDA also approved the use of the PSA test in conjunction with a Digital Rectal Exam (DRE) for testing men who displayed symptoms of prostate cancer. If you want to know more about the PSA test, keep reading.
Understanding the Meaning of PSA
PSA, short for Prostate-Specific Antigen, refers to a protein that is generated by both normal and malignant prostate cells. While the majority of PSA is expelled from the body through semen, a minute portion also enters the bloodstream. Elevated levels of PSA can be attributed to various factors, including noncancerous conditions like prostatitis, an enlarged prostate, or even as an indication of prostate cancer.
Understanding the Purpose of a PSA Test
A PSA test is a type of blood test that is primarily conducted to screen for prostate cancer. Its main objective is to measure the levels of prostate-specific antigen (PSA) in the bloodstream. By detecting elevated levels of this antigen, the test can indicate the potential presence of prostate cancer. However, it is important to note that high levels of PSA can also be caused by conditions such as an inflamed or enlarged prostate.