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I had some blood test for c-anca (pr3) antibodies and I got intriguing results: in November and December I got posivite results, but in January it was negative. Then, again, in February I got positive results from two different laboratories, with one of them showing 40 and the other one 70. Now, today, the laboratory which gave me the 70 results has been giving me a 92 outcome. As an idea, where I live, for a negative interpretation, the laboratories have taken a minimum or equal to 5 limit.
How can this be possible? I was thinking that either one of the laboratories makes the blood analysis in the wrong way or c-anca jumps from value to value in just a week or two.
I am taking prednisone and cyclophosphamide since November last year after I was considered to be healthy exactly one year ago - and all of this due to a positive c-anca result from November. If there really is a fluctuation, I am thinking about a conspiracy theory against me as my creatinine level is normal and, overall, the rest of the blood test are pretty good (except for proteins which I understood that will never be in the ok limits since the kidneys are affected)
What do you folks think? Am I losing my mind here or this happened to any of you?
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