The previous thread had the suggestion of avoiding sex before the test to avoid stirring up any residual prostate cells. I have heard of surgery leaving bits of prostate behind, and assume they would continue to do the usual prostate thing -- producing small amounts of PSA.
With my last test being a little up, I will be an abstainer for at least two days before my next. Thinking about
Geezer99's concerns: in the unlikely event that I meet a hot doll and this is my only chance, I will postpone the PSA test -- if I survive