Free prostate antigen reference value

Free prostate antigen is free prostate specific antigen, the reference value is 0-1ng/mL.

Free prostate specific antigen is a specific, prostate-related antigen, in the blood in free form, its serum level does not exceed 1ng/mL is normal. Free prostate specific antigen abnormal level is of little significance, but also need to be combined with total prostate specific antigen analysis, if the ratio of free prostate specific antigen to total prostate specific antigen is less than 16%, to consider the possibility of prostate cancer. The lower the ratio, the greater the risk of prostate cancer.