weisssoccermom wrote:Before you go getting too upset, please check that the lab is using the same testing method on both times. There are two very different tests (Bayer/Seimens & Roche) with different 'normal' levels and they CANNOT be interchanged. The normal lab values are different from each other....for example, the Bayer method has a normal of 0 - 2.5 for a non smoker and the Roche has a normal for non smokers of 0 - 3.7.....and that has recently changed as well.
I only get my CEA tested now once a year and since last year, the lab my GP uses changed testing method which caused a large increase (1.7 highest with Bayer to a 2.6 with the Roche method) and freaked me out. My GP kept saying it was 'normal' but I wasn't convinced until I realized that the lab had changed from the Bayer to Roche testing.
So, moral of the story, before you go getting concerned....check the testing method and the associated NORMAL for that test.
testing765 wrote:Hi. Another member on this board suggested that I be fully hydrated before I leave the house and go to the chemo center for cea test. I have found that when I drink a good amount of water an hour or so before the test, my cea numbers, on average, are lower. So do you recall if you were dehydrated when you had the last couple of cea tests? It is just something to consider. I would ask for a cea test to be done sooner than the current schedule that your oncologist has set up. Try not to worry.
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