3 doctors weighed in:

Can blood tests for anemia give you wrong results?

3 doctors weighed in
Dr. Ed Friedlander
Pathology
2 doctors agree

In brief: Rarely

Detecting anemia (low hemoglobin / hematocrit) is one of the simplest of all lab tests, but clerical / computer errors still happen.
If there is doubt whether you are anemic, repeat. Labs required to seek the cause (serum iron, b12, folate, (folic acid) reticulocyte count, many others) are usually reliable; taking an iron pill before the draw can mask elemental iron deficiency.

In brief: Rarely

Detecting anemia (low hemoglobin / hematocrit) is one of the simplest of all lab tests, but clerical / computer errors still happen.
If there is doubt whether you are anemic, repeat. Labs required to seek the cause (serum iron, b12, folate, (folic acid) reticulocyte count, many others) are usually reliable; taking an iron pill before the draw can mask elemental iron deficiency.
Dr. Ed Friedlander
Dr. Ed Friedlander
Thank
1 comment
Dr. Steven Hill
Usually labs do extremely abnormal labs a second time, but if a person's symptoms do not match their lab many of us have them redrawn. Most anemia tests are quite accurate;
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