Blood test timing - a second chance!

[Ebx_design]

Hi, I now have another thyroid blood draw due next week, the appointment is at lunch, booked for 12:40pm.

I currently take my meds like this:

2:30am 15mcg T3 & 25mcg T4

10:30am 12.5mcg T3

5:30pm 10mcg T3

At what time should I take my meds before, or which dose should miss (if any) to avoid my previous mistake (last week) of leaving too long between doses and the draw?

I want to get it right this time, and hopefully the results will be a bit more useful?

Many thanks in advance!

[Ebx_design]

My previous ill-timed dosing saga last week for context - healthunlocked.com/thyroidu...

[SlowDragon Administrator]

Last dose Levo 24 hours before test

If you normally take levothyroxine at bedtime/in night ...adjust timings as follows prior to blood test

If testing Monday morning, delay Saturday nighttimd dose levothyroxine until Sunday midday . Delay Sunday nighttime dose levothyroxine until after blood test on Monday. Take Monday evening dose levothyroxine as per normal

last dose T3 at 8-12 hours before test ….so last dose 2.30am is about right

Take 10.30am dose T3 AFTER blood test

[Ebx_design in reply to SlowDragon]

Hello,

I'm a bit confused by how you've described the levo dosing. Apologies.

My test is this coming Tuesday around noon. So, do you mean I take my Sunday dose (as in tomorrow) at lunchtime? Then no T4 on Monday at all until just after the blood test? (wouldn't that be quite over 24hrs?)

Or is it I take Monday T4 dose at noon, then nothing til after (which is closer to 24hrs)?

I understand what you mean about T3. Would it be useful if I moved my night time T3 a little say to 3:30am so that I'm closer to the 9hr mark? Or is the difference small between an hr or so?

Thank you

[SlowDragon Administrator in reply to Ebx_design]

take Monday T4 dose at noon, then nothing til after (which is closer to 24hrs)?

Yes this option

[Ebx_design in reply to SlowDragon]

OK yep, got it. Thank you!