PSA Decline Greater than 50 Percent

**Semantic type:** Laboratory or Test Result

**Definition:** A finding indicating that the blood concentration of prostate specific antigen in a subject's sample has decreased by more than 50 percent compared to the value recorded for a previous sample from that subject.

**Synonyms:** - PSA Decline Greater than Fifty Percent - PSA Decline More than 50 Percent - PSA Decline More than Fifty Percent - PSA Decrease Greater than 50 Percent - PSA Decrease Greater than Fifty Percent