Blood Test Preparation : Finally, I managed to... - Thyroid UK

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Blood Test Preparation

AppleOrchard profile image
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Finally, I managed to get another blood test appointment after the lab didn’t test my T3. I’d like to ensure I prepare properly.

My appointment is at 8.30am on Wednesday 8th June.

I take 75 mcg Eltroxin and 25 mcg liothyronine. I usually take the whole dose at 7 am.

I also take vitamin D, B12 and B complex. I stopped the B complex on 31 May in prep.

Thank you very much.

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AppleOrchard
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SeasideSusie profile image
SeasideSusieRemembering

AppleOrchard

Take your last dose of Levo 24 hours before your test.

With your liothyronine split this into 2 or 3 doses the day before the test and take the last part of the dose 8-12 hours before the test.

You can continue to take your Vit D and B12 up to and including the day before the test and take after the test on the day.

AppleOrchard profile image
AppleOrchard in reply to SeasideSusie

Thank you very much - that’s really helpful. I’ll do it right this time and hope the lab does what’s needed. Thank you again!

AppleOrchard profile image
AppleOrchard in reply to SeasideSusie

I was thinking of splitting my T3 (25mcg) into three - first dose (half) at 7 am, second dose (quarter) at 2 pm and third dose (quarter) at 10.30 pm. Would that be right?

Thank you!

SeasideSusie profile image
SeasideSusieRemembering in reply to AppleOrchard

Yes, that sounds fine.

AppleOrchard profile image
AppleOrchard in reply to SeasideSusie

Thank you very much

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