Question: Following the finding of prostate gland abnormalities on digital rectal exam, the nurse practitioner orders a prostate-specific antigen. When educating the patient which statement about PSA levels is NOT true? a. PSA is considered within normal limits if it is 4 ng/ml, or less. b. PSA is always elevated in the presence of malignant prostate epithelium c. PSA may be elevated in the presence of BPH. d. PSA may be elevated, and require repeating, if the patient ejaculated 24 hours before the initial draw