Will B12 patches affect blood test for Intrinsic Factor.

Saw GP yesterday.

After going round in circles for some time he agreed a blood test for I.F.

My B12 ( private blood test I had done as GP wasn't interested) showed 198.

I bought some B12 patches and they've helped enormously but the effect only lasts for 2 days.

Blood test for IF can't be done until next Tuesday.

Should I go without patches until then, even though I know I'll go back to a near zombie state?

Thanks for any advice.

[Hidden]

Forgot to say, he categorically said shortness of breath wasn't a factor on B12 deficiency ---- but I'm sure it's a major symptom, mentioned on every website I've read. Trouble is I've read so much and with fog brain not sure how logically I'm storing the info!

[fbirder in reply to Hidden]

Check out the symptoms list on the PAS website - pernicious-anaemia-society....

When I first got diagnosed I was reading through this list and got to 'the sighs'. "That's you! That's definitely you. And it's so annoying!" - was the immediate response.

If the lab uses a relatively modern (about 25 years old) anti-IF test then you're probably better off stopping the patches for a few days. If they use the very modern test then it's not affected at all.