Vitamin B12 Test, Serum

Test Description

A Vitamin B12 test measures the amount of B12 in the blood. Vitamin B12 is essential for various bodily functions, including brain health, blood cell production, and nerve functioning

Indications of the Test

The test is usually performed when there are symptoms of a Vitamin B12 deficiency, such as anemia or nervous system problems. Some people at a greater risk of Vitamin B12 deficiency, such as older adults, vegans, vegetarians, and those with digestive issues, may undergo regular testing to check their B12 levels

Patient Preparation/Instructions

It’s a simple blood test that can be done at any time, and there is no need to fast before the test. However, it’s important to inform the doctor about all medications and supplements being taken, as some of them may affect the test results

Typical Reference Values

Normal levels of Vitamin B12 in the body usually range from 200 to 900 picograms per milliliter. The specific normal range may vary slightly depending on the laboratory

Turnaround Time

The test results are typically available after a few days, whether it’s done in a laboratory or through a home test kit

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