What blood test indicates a Vitamin D deficiency?
The vitamin D test, 25-hydroxy vitamin D test is the most accurate way to measure how much vitamin D is in your body.
Last updated on 09 Dec 2024
No, it is not possible.
High levels of B12 is rare, however, it may be a sign of a serious, even life-threatening, disease. Hematologic disorders like chronic myelogeneous leukemia, promyelocytic leukemia, polycythemia vera and also the hypereosinophilic syndrome can result in elevated levels of cobalamin. You are recommended to check with a doctor.
No, fasting is required for B12 test.
After an injection the serum B12 value rises quickly to far above the upper reference value on average 150-700 pmol/L
Cyanocobalaomin, Methylocobalamin, Vit B12
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