Cobalamin Test: What Does the Result Tell?

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Cobalamin Test measures the level of vitamin B12 in the blood, in order to determine the cause of anemia or neuropathy, the nutritional status, and other related conditions.

Normal Range:

The normal range is 160 to 950 picograms per milliliter (pg/mL), or 118 to 701 picomole per liter (pmol/L).

What Does the Result Tell?

Normal B12 levels suggest there may be no vitamin B12 deficiency. The conclusion may be different after taking methylmalonic acid (MMA) test.

Low B12 levels indicate the possibility of B12 deficiency. But it doesn’t tell the severity of the anemia or neuropathy.

High levels of vitamin B12 are uncommon. If the result is high, it may be caused by obesity, AIDS, diabetes, liver disease or other disorders.


Keywords: Cobalamin; Folic Acid; RBC Folate; Vitamin B12 and Folate; Vitamin B12; Folate

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