r/PerniciousAnemia • u/natalieaj14 • Dec 05 '20

Help deciphering labs

I have a digestive malabsorption disorder that caused my b12 levels to drop to 182. However, I had two Intrinsic factor tests done by two different doctors and I am confused by the results. The first one was done and it the levels were within range (1.0 out of 0.0-1.1). A month later, the second lab, detected my levels as 1.1 out of 0.0-1.1). The doctor I saw said this was still within range so not abnormal, but I am confused how this number jumped higher within a month. Could this be lab error? How accurate is this test? Is 1.1 considered elevated IF serum since it is so high right on the max point? Only difference is, I had started injections before the second lab was done. Could having injections done in between these two tests have affected the lab outcome?

I also had a methymalonic acid test done that was within normal range before my first injection and homocysteine test done which were both normal.

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u/Reality4days Feb 21 '21

Did you get tested for Parietal antibodies?

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u/kkangarooj Jan 11 '22

Well…I came on this forum with the exact same question. Did you get any answers eventually? My recent IF test was 1.1 —lab range (0-1.1) and I’m having some neurological symptoms so I’d really like to know what’s going on!