Posted 8/23/2013 3:18 PM (GMT -5)
The PSA value itself in conjunction with your testosterone level is one metric.
The more important metric would be your doubling rate, how many months it takes that initial 2.0 reading to get to 4.0, or the 2.1 to get to 4.2 or the 2.4 to get to 4.8.
Hopefully you can attribute that 2.4 to too much sex the night before and/or the night before that. Now that you know that is a factor, don't have your PSA tested too often.:}
To early to see a trend but if that 0.4 increase took 3 months, on a straight line basis it would be 15 months to grow the 2.0 difference from 2.0 to 4.0.
Usually doubling rates much smaller in terms of months duration are the most problematic, not the 15's.
However, at your age if that trend were to continue it would ultimately become problematic in terms of high PSA.
With so many variables in PSA outcome, I would think another PSA test (sans sex the 48 hours prior) might be in order before you undergo pelvic scans. or consider having a biopsy, but I am not a medical professional.
Good luck and as our mod PeterDA said, do let us know if we can be of any help on your father's PCa situation.
LupronJim