PSA Decline Greater than or Equal to 30 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 at least 30 percent from the concentration recorded for a previous sample from that subject.

**Synonyms:** - PSA Decline 30 Percent or Greater - PSA Decline 30 Percent or More - PSA Decline Greater than or Equal to Thirty Percent - PSA Decline Thirty Percent or Greater - PSA Decline Thirty Percent or More - PSA Decrease Greater than or Equal to 30 Percent - PSA Decrease Greater than or Equal to Thirty Percent