I do understand there can be a difference in blood test results from lab to lab, but how vast can this difference be?
I have Kaiser for insurance and have always used them for PSA, and all blood work. My last 3 PSA results were April second: 1.18, July second: 0.82, and urologist wanted retest July 30: 0.84: all tests were done 0830 hours each time.
Health Testing Centers was offering free PSA tests so I got one from a local LabCorp near me Oct. 8, done at 0900 hours...the results were 1.4; huge difference!
Is such a LARGE difference from lab to lab normal...I expected a difference, but nothing this large; this seems such a huge jump?