@heavyphil, PSA levels are normal up to 4.0. A 2.0 is still very low. Mine was 3.75 when I had MRI/Fusion Biopsies only because my PSA was continuing to rise every test.

So if @ecurb has a 2.0 that would be a very low PSA number to get a PSMA. The .20 would rule out the need. Now I say that as I did not read the original post. Did @ecurb have a RP? If had a RP the PSA should be at undetectable level and I think that is when it reaches .20 which is where I am told the no longer give a reading below that. So if had RP then the 2.0 would be something to address with futher testing and consider a PSMA and bone scan.