I have some post on my PSA adventure.....
Do an "advanced search" for "PSA".
A number of post offer some good info.
FYI I hit a PSA of 8.1 over a short period and the culprit was a prostate infection.
BTW I am north of you age wise
My PSA shot up.
BIOPSY...BIOPSY.... BIOPSY... said the Uro....
4k first said I
3T MP MRI second said I...
As noted I had a prostate infection and had NO need for a blind biopsy at that point in time.
As noted above the 3T MP MRI is only as good as the DR that is reading it.
The 4Kscore Can Accurately Identify the Risk of Aggressive Prostate Cancer
You can go here and sign up and look around the PCa forum. A LOT of good info in PCa, treatment options and testing from folks that have already gone done that road.
Us TOO Prostate Cancer - Inspire
Also I think as we age the PSA tends to move up a bit also. I was hovering a little over 4 and recently it pushed up past 5 BUT I am also having kidney stone issues and a possible infection and both can impact testing.... OUCH!!!!