Vitamin B12 Test

Vitamin B12 Test

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. Read more
Test details

Sample type:
You do not need to do anything special to prepare for the sample collection. This panel does not require fasting.
Test type: In Person
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+ $6.00 Physician Service Fee
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What Icon
Measures the level of vitamin B12 (also known as cobalamin) in your blood.

Who Icon
Must be 18+ years of age to purchase.
How Icon
Schedule an appointment, then visit a Quest Diagnostics patient service center location.
About the Test
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.

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. 

What to expect with Quest

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Get lab work without having to wait and pay for an appointment with a doctor. Shop and choose from 75+ tests – the same quality tests that doctors use and trust, but no doctor visit required for purchase.

Easy to buy & simple to schedule

After your purchase, schedule an appointment at a nearby Quest Diagnostics location and have your specimen sample collected by a trained healthcare professional.

Fast online results, with support

Access test results from your phone as soon as they’re available, with the option to discuss your results with an independent physician at no extra cost.