Vitamin B12 Test

Do you want to monitor your vitamin B12 levels? Choose this test to measure the level of vitamin B12, an essential vitamin that is necessary for making red blood cells, maintaining a healthy nervous system, and creating DNA (deoxyribonucleic acid), the genetic material present in our cells.

+ $6.00 Physician Service Fee

Who is getting tested? *

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Our Vitamin B12 Test measures the level of vitamin B12 (also known as cobalamin) in your blood.

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Must be 18+ years of age to purchase

Orders not permitted in: AK, HI, AZ

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Type of sample to be collected:
Blood (venipuncture - a needle is used to draw blood from a vein)
Schedule an appointment, then visit one of our Patient Service Centers.
About the test

The Vitamin B12 Test measures the level of vitamin B12 in your blood. Vitamin B12 is an essential nutrient and is necessary for producing and maintaining nerve and red blood cells, supporting the nervous system, and helping to create DNA, the basis of all cells. Vitamin B12 must be supplied by the diet or through supplementation because the body is not able to produce it. Vitamin B12 deficiency (low levels of vitamin B12) may be due to limited dietary intake, poor absorption, advanced age, certain medical conditions, or some medications. Low levels of vitamin B12 can lead to anemia, nervous system conditions and a variety of health issues. This test can help determine whether you have a vitamin B12 deficiency.

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How Does it Work?
Take an in-person test at a Quest Diagnostics location.
Over 2000+ locations focus on your safety, confidentiality and convenience.
1. Purchase your test
Schedule your appointment after purchasing a test to minimize wait time.
2. Visit a location
Enter your zip code to find a Quest Diagnostics location closest to you.
3. Get results online
We will email you when your confidential results are available. 

The benefits of testing

You can get the information you need to support a healthy life - for yourself.

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Take control of your health

Conveniently shop and pay online for lab tests without a doctor's visit. An independent physician will review your request and if appropriate, confirm your order and offer oversight.

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Schedule and manage your appointments

Conveniently schedule your appointment online at one of our Quest Diagnostics locations. Certain tests may also offer self-testing home delivery.

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Get your results online

View your results through your secure account online. And it's easy to share the result with your doctor.