Vitamin B12

The Vitamin B12 blood test measures the level of vitamin B12 in your blood. Vitamin B12 is an essential nutrient that plays a crucial role in red blood cell production, nerve function, and DNA synthesis.

Sample Type: The test requires a small blood sample, typically obtained by drawing blood from a vein in your arm using a needle.

Normal Range: The normal range for vitamin B12 levels in the blood is generally between 200 to 900 picograms per milliliter (pg/mL) or 148 to 664 picomoles per liter (pmol/L). However, the specific range may vary slightly depending on the laboratory and the reference values they use.

Low levels of vitamin B12 can lead to a condition called vitamin B12 deficiency, which can cause symptoms such as fatigue, weakness, tingling sensations, and megaloblastic anemia. Vitamin B12 deficiency can be caused by various factors, including inadequate dietary intake, malabsorption issues, or certain medical conditions.

If your vitamin B12 levels fall below the normal range, your healthcare provider may recommend further evaluation to determine the underlying cause and appropriate treatment, such as dietary changes or vitamin B12 supplementation.

It’s important to note that interpreting vitamin B12 levels can be complex, and additional tests and clinical evaluation may be necessary to fully assess vitamin B12 status. Therefore, it’s best to consult with a healthcare professional for proper interpretation of your vitamin B12 test results and to discuss any necessary steps to maintain or improve your health.