Free PSA

Product name:Free PSA

Descriptions:Prostate specific antigen (PSA) are produced by prostate cells (the tiny basic functioning units of the prostate). The PSA then circulates in the bloodstream. While in the blood, PSA can either be attached to proteins that are present in the blood or it can be unattached (“free”). It is normal to have both attached and "free" PSA and neither of these forms of PSA are considered abnormal. The "percent-free" PSA can be calculated by dividing the amount of “free” PSA by the total PSA. The most common situation in which the percent-free PSA is used to make a decision about how to test for or treat prostate cancer is when the absolute PSA level is at an intermediate level.