My first PSA after surgery on Jan 2,2009 was .01. This was from blood drawn by my GP who also did cholesterol and testosterone. He agreed to T replacement if my PSA was undetectable. In early April I had another sample drawn by my urologist, PSA, Testosterone and Free Testosterone. He started our consult by saying "Your PSA is undetectable, testosterone is where it should be". The rest of the time we talked about erectile issues and solutions. He's big on this. Wants all his patients dry with a woody, and on schedule. Nothing wrong with that.
I called his nurse back later the same day to get the actual numbers from the test to put into my log, and lo and behold! the PSA was .04 What happened to my .01? We went round and round, until finally she claimed that different labs produce different "undetectable" numbers, depending on their testing equipment. Her .04 is the same as my GP's .01 -she claims. Undetectable.
My Medicare coverage starts on June 1, and my Medicare Advantage covers a comprehensive initial exam, blood panel, pretty much whatever my GP stipulates, at no cost. (I've got a great plan, $21.80/month includes everything even the Part D. Took a lot of research to find that one too. Email me if you want more info: [email protected])
Anyway, I'll get another PSA using the GP's lab and see if my urologist's nurse was telling the truth (or she just wanted to get me off the phone). It DOES make sense that there could be minor variations between labs, and on different days, due to type of equipment, calibration or some other issue.
As PC survivors the numbers we are concerned about are not relevant to the majority of men tested. A PSA of less than 1.0 would be of no concern to someone getting his annual PSA. The labs are probably geared to that market. To us, ANY number is a big deal. The numbers DO seem to bounce around quite a bit.
Is there a name for the ultra sensitive test? Is there a lab that those of us who live away from a major metro area could have out blood sent to?