Posted 10/29/2023 6:49 PM (GMT 0)
In Jan 24 I will reach my RALP 8th anniversary. I have my PSA tested twice a year; once by the VA and once through medicare at QUEST. The VA uses the ADVIA Centaur assay. Invariably, year after year, it comes back as low detectable .02. However, my QUEST is always < .02. In recent past years, I had it tested by Labcorp and it always came back at either <.014 or <.006. Why does the VA test come back low detectable? Who knows? Greater sensitivity? Since it remains constant at .02 year after year, I can only assume it's measuring benign prostate tissue left behind after surgery. My PCP seems to agree. The ultrasenstive PSA testing at such low levels is not exact science.