Some alb may offer cPSA which direct measure bound
PSA (related to cancer) but not measure total
PSA and %free
PSA, but most labs do not offer cPSA.
There is a book - The complete prostate book, by J. Stephen Jones from Cleveland Clinic Foundation, describe all prostate issues and PSA test in details.
Good luck for your PSA test, hope it will stable. And please keep us posted.
The best regards.