Advice for vitamin blood test: Hi My doc has... - Thyroid UK

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Advice for vitamin blood test

Sinkingfast profile image
5 Replies

Hi

My doc has agreed to test Vit d, calcium, parathyroid, B12, Ferritin & Folate...

Test is tomorrow at noon. I stopped B supplements over a week ago.

Any advice please on what I should do beforehand, e.g. is it ok to eat before etc

Thanks

PS thyroid is underactive, autoimmune , tsh usually 0.04-0.07, t4 top of range (22 +/-), t3 strugglesto get mid range, so poor converter

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SeasideSusie profile image
SeasideSusieRemembering

Sinkingfast

What time is your test?

Iron tests should be done after a 12 hour fast and no high iron food for a couple of days beforehand, so that includes ferritin.

I've never had vitamins/minerlas tested by my GP other than ferritin has occasionally been included but I've not been told beforehand, so I always book an early appointment and only have water, nothing to eat, before I go just in case they're doing something I don't know about.

Sinkingfast profile image
Sinkingfast in reply toSeasideSusie

Thanks. Test is at 12, noon - not sure if ive eaten any iron rich foods ...

SeasideSusie profile image
SeasideSusieRemembering in reply toSinkingfast

not sure if ive eaten any iron rich foods

Liver, pate, black pudding, red meat.

Sinkingfast profile image
Sinkingfast in reply toSeasideSusie

I've had pork last couple of days..

SeasideSusie profile image
SeasideSusieRemembering in reply toSinkingfast

Don't worry about that.

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