3 doctors weighed in:

Do I have to get some blood tests before doing a B12 test?

3 doctors weighed in
Dr. Gregory Hines
Family Medicine
2 doctors agree

In brief: No

A B12 test is a blood test, and is done at the same time.

In brief: No

A B12 test is a blood test, and is done at the same time.
Dr. Gregory Hines
Dr. Gregory Hines
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