blood test when to take meds

[Joannak]

hi could I just check is it 6 hours before bloods I take my levothyroxine? My bloods are at 1150 Monday thankyou in advance

[helvella Administrator Thyroid UK]

Have a look at this pinned post:

Suggested Thyroid Hormone Test Timing Protocols

healthunlocked.com/thyroidu...

[Joannak in reply to helvella]

thankyou

[SlowDragon Administrator]

If hoping for dose increase in levothyroxine

TSH would be higher testing at 9am

Always test with Last dose levothyroxine 24 hours before test

Essential to test TSH, Ft4 and Ft3 together

plus test vitamin D, folate, B12 and ferritin at least annually

What vitamin supplements are you taking

Remember to stop taking any supplements that contain biotin 5-7 days before any blood tests as biotin can falsely affect test results

[Joannak]

thankyou

[jolbrit]

Hi,I took advice on this forum and took my last dose 24 hours before the test.