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Medical Forum / Diseases and Disorders / Prostate Cancer / December 2006PSA vs fPSA
Hi, anyone know if the PSA level needs to be at a certain point before fPSA can be accurately measured ? Would the PSA need to be over {say} 0.5 ? Thanks, Canada Bob. > Hi, > [quoted text clipped - 6 lines] > > Canada Bob. Hi Bob...I think the PSA needs to be around 2.5 or more for fPSA to have significance...Happy Holidays, ron Hi Ron... > Hi Bob...I think the PSA needs to be around 2.5 or more for fPSA to have significance... By "significance" do you mean ability to detect it Ron ??? Just wondering if fPSA can be detected {reliably} if at all if the PSA is less than 0.5 ? Other than that, are folks {in here} getting the fPSA tests or the PCA3 tests done ? Canada Bob. Hi Bob...See my comments within your post...Happy Holiday, ron > Hi Ron... > > > Hi Bob...I think the PSA needs to be around 2.5 or more for fPSA to have significance... > > By "significance" do you mean ability to detect it Ron ??? The free PSA can be detected when total PSA is less than 2.5, but studies showing fPSA to be a useful indicator (e.g. if % fPSA < 15%, then that's an indicator that PCa is present) have not included men with tPSA below about 2.5 > Just wondering if fPSA can be detected {reliably} if at all if the PSA > is less than 0.5 ? > > Other than that, are folks {in here} getting the fPSA tests or the PCA3 > tests done ? >From my readings of this and other PCa NGs, it seems a fair number of men get a fPSA test during the diagnosis process. The PCA3 test has been shown to be a sensitive test for PCa, but the problem with it is that it requires the doc to due a "vigorous" prostate massage in order to express the protein being detected. Unless you use a doc who really knows how to give the "PCA3 massage", results can be equivocal. > Canada Bob. Hi Ron... Thanks for the clarifications, appreciated... Canada Bob. |
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