What is the normal range for B12 levels?

What is the normal range for B12 levels?

Normal values are 160 to 950 picograms per milliliter (pg/mL), or 118 to 701 picomoles per liter (pmol/L). Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or may test different samples. Talk to your provider about what your specific test results mean.

Is 400 a low B12 level?

Patients with serum vitamin B12 levels between 150 and 400 ng/L are considered borderline deficient and should be evaluated further by functional tests for vitamin B12 deficiency.

What are the normal vitamin B12 levels by age?

The level of Vitamin B12 below 200 ng/ml indicates vitamin B12 deficiency. Alteration is also found in normal B12 levels by age. Male children have a slightly lower level of Vitamin B12 as compared to female Children. How Is Vitamin B12 Deficiency Diagnosed? Blood tests are usually recommended to analyze the level of Vitamin B12 in the body.

What should I do to check my vitamin B12 levels?

Blood tests are usually recommended to analyze the level of Vitamin B12 in the body. However, urine can also be analyzed for determining the level of vitamin B12. You are advised not to eat or drink 6-8 hours before testing. The blood is drawn through the aseptic technique and send for evaluating levels of vitamin B12.

Is there a vitamin B12 deficiency in humans?

See Vitamin B12 Deficiency Evaluation in Special Instructions. Vitamin B12 (cobalamin) is necessary for hematopoiesis and normal neuronal function. In humans, it is obtained only from animal proteins and requires intrinsic factor (IF) for absorption.

What should my folate level be for a B12 test?

Between 200 to 300 pg/mL is considered borderline and your doctor may do more testing. Below 200 pg/mL is low and more testing is needed. In some cases, your doctor may also test for your folate level because low folate can cause signs and symptoms similar to low B12.