Vitamin B12 Cyanocobalamin Test

Vitamin B12 Cyanocobalamin Test


Test Schedule:


Report Collection:

Same Day

Test Overview

Test Components

Vitamin B12

Vitamin B12 Test

Vitamin B12 is a water-soluble vitamin belonging to the B complex vitamins. It helps in DNA synthesis, fatty acid and amino acid metabolisms. It is required for myelin synthesis and normal functioning of nervous system. It also plays a role in RBC synthesis and maturation of blood cells in the bone marrow.

Vitamin B12 Deficiency-

  • Low intake, presence of binding factors, malabsorption, intestinal parasites etc.
  • Pernicious anemia
  • Gastrectomy
  • Chronic pancreatitis
  • Drugs such as metformin, omeprazole, methotrexate or anti-seizure medications such as phenytoin etc 
  • Increased requirements - pregnancy/lactation, HIV/AIDS, etc
  • Heavy drinking or chronic alcoholism

Elevated homocysteine and methylmalonic acid levels are considered more reliable indicators of vitamin B 12 deficiency. Holotranscobalamine (active B12) levels which measures the biologically active vitamin B12 is an additional test available to diagnose B12 deficiency.

Excessive exposure of sample to light may alter vitamin B12 values.

What are the components of Vitamin B12 test?

A vitamin B12 measures the amount of B12 in the blood.

Reference range

VITAMIN B12 -211-911 pg/ml

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