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This blood test measures the amount of vitamin B12 in your blood. Your body needs this B vitamin to make blood cells and to keep your nervous system healthy.
This test is used to:
In general, you don't need to prepare before having this test. But it’s important to let your doctor know if you take any medicines, including vitamins and natural health products. Some medicines may affect the test results. Your doctor will let you know if you need to stop taking any medicines before you have the test.
A health professional uses a needle to take a blood sample, usually from the arm.
The test will take a few minutes.
Follow-up care is a key part of your treatment and safety. Be sure to make and go to all appointments, and call your doctor or nurse call line if you are having problems. It's also a good idea to keep a list of the medicines you take. Ask your doctor when you can expect to have your test results.
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Adaptation Date: 5/6/2021
Adapted By: Alberta Health Services
Adaptation Reviewed By: Alberta Health Services
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