LPSA | Free prostate-specific antigen

LPSA | Free Prostate-Specific Antigen - is performed only together with a total PSA test, calculating the ratio of free PSA (fPSA) to total PSA (tPSA) (% fPSA).
Ratio of LPSA to total PSA (calculated) - This ratio is useful when used in conjunction with the total PSA test as an aid in distinguishing prostate cancer from benign prostate diseases.