Clanad - not all American doctors believe in the usefulness of percent free PSA, or other PSA tests
"Numerous strategies have been proposed to improve the diagnostic performance of PSA when levels are less than 10.0 ng/mL. These strategies include measuring PSA velocity (change in PSA over time), PSA density (PSA per unit volume of prostate), free PSA, complexed PSA, and using age- and race-specific reference ranges. We suggest not routinely using any of these strategies in deciding which men to refer for biopsy."
Richard M Hoffman 2014.
http://themedicalroundtable.com/users/richard-hoffman
The American Cancer Society "recommends that that men have a chance to make an informed decision with their health care provider about whether to be screened for prostate cancer. The decision should be made after getting information about the uncertainties, risks, and potential benefits of prostate cancer screening. Men should not be screened unless they have received this information".
The same site also mentions that "not all doctors agree on how to use these other PSA tests"
http://www.cancer.org/cancer/prostatecancer/detailedguide/prostate-cancer-detection
A complex subject, but Bazile should see his GP, as advice can only be given on an individual basis.
I hope it all turns out well for you Bazile.