Advice Please? Not Sure What To Do Now. - Thyroid UK

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Advice Please? Not Sure What To Do Now.

Ellie-Louise profile image
3 Replies

I meant to leave my Levo off last night and take it this morning because I have a blood test tomorrow morning at 08:55.

I took it at around 01:00 when I went to bed, which will make it 32 hours instead of 24.

Should I take some this morning or not? the time is 9:15 atm. Thank you, although I’m probably too late asking.

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Ellie-Louise profile image
Ellie-Louise
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3 Replies
SlowDragon profile image
SlowDragonAmbassador

I should leave it as is now

Ft4 will be a bit lower than if you had taken it in morning

Ellie-Louise profile image
Ellie-Louise in reply toSlowDragon

Thank you so much. x

tattybogle profile image
tattybogle

delaying evening doses untill next morming (to get 24hrs) already gives a slightly false low for fT4 levels (because you've effectively missed out a full days dose to take straight after the test)

... so if you also leave a 36 hr gap, then the fT4 result you see on this test will definitely be lower than the usual levels you have each day when dosing normally ...

how much lower ? is a bit of a ' how long is piece of string' type question .... impossible to say with any certainty ... but you need to take this into account when interpreting your fT4 results .

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