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Vitamin B12 test measures the level of cobalamin (Vitamin B12) in the blood, which is essential for red blood cell formation, nerve function, and DNA synthesis. Adequate Vitamin B12 is important for maintaining brain health, energy levels, and proper neurological function.
This test is commonly recommended to detect Vitamin B12 deficiency, which may lead to anemia, fatigue, weakness, numbness or tingling in hands and feet, memory problems, and nerve disorders. It is also used to monitor nutritional status, malabsorption conditions, and response to Vitamin B12 supplementation or treatment.
"No, you can get a B12 blood test anytime, you don't need to go without food (fasting) before you do."
"A vitamin B-12 level test checks the amount of vitamin B-12 in the blood or urine to gauge the body's overall vitamin B-12 stores. Vitamin B-12 is necessary for several bodily processes, including nerve function and the production of DNA and red blood cells."
"Normal values are 160 to 950 picograms per millilitre (pg/mL), or 118 to 701 picomoles per litre(pmol/L). Normal value ranges may vary slightly among different laboratories."