Blood tests on ndt: Hi all. I am due for some... - Thyroid UK

Thyroid UK

139,071 members163,215 posts

Blood tests on ndt

Lei9g profile image
1 Reply

Hi all. I am due for some blood tests soon. I was wondering how best to go about getting them. I am on 2 grains erfa. I take one in the morning and one mid to late afternoon. (Still trying to work out optimal times to take). At what time should I get the blood drawn and should I take my meds as normal or not?

Thanks

Written by
Lei9g profile image
Lei9g
To view profiles and participate in discussions please or .
Read more about...
1 Reply
SeasideSusie profile image
SeasideSusieRemembering

Lei9g

General advice here is to have the earliest appointment of the day for blood draw after an overnight fast (just delay breakfast and drink water only before blood draw), and when taking NDT (or T3) then take your last dose 8-12 hours before. Any longer gap and you'll get a false low FT3, take your NDT too close to the blood draw and you'll get a false high FT3.

You may also like...

Blood tests while on NDT

When doing blood tests while on NDT, when is the best time to do them? And when should the last...

Blood tests on NDT & Thyroxine

bloods in a month. So do I take my Thyroxine 24 hours before the test & NDT 12 hours before to get...

Timing of NDT for blood test

I normally take my NDT in two doses - early morning and afternoon. I am doing a finger prick blood...

NDT blood test timing

Good morning all My understanding is when on NDT you should test 12 hours after your dose. Is that...

Blood test results on NDT

I feel ok. I tend to hit a wall mid afternoon (when my meds are due), but I tend to perk up again by