B12 Lab Results & Injection Timing: What You Need to Know

Question
Can taking a B12 shot right before getting the lab test done make the results abnormally high?  I am usually deficient in b12 and take shots.  The last time I went to the Dr I took the shot then had a blood draw.  then my B12 was 62394.... what would be the cause or would tis skew the results?  Jessica

Answer
Hi Jessica, I'd be happy to try and answer your question.  I woudn't recommend getting your B12 level checked right after you get a B12 injection.  The level was probably falsely elevated.  But are you sure of the result as being 62394?  That's very very high.  The machine where I work will only read a result of less than 2000, anything greater than 2000 it won't even read.  No matter, a high B12 level isn't a problem, a low one is, that's why you're getting the shots.  Next time you have your B12 level checked, I would wait a day of two after you have the injection.

Samantha

**This answer is not a substitute for professional medical advice.**