Morning all.
I have a blood test Wednesday morning I take my levo at night and through the day I take magnesium, b12, b complex.
When do I take my last levo and when do I retake the missed tablets.. I have somewhere in my foggy brain that I don't take tonight (Monday) seems a long time til Wednesday after my blood test.. TIA
Miss night dose and take levo after blood draw. You also take night dose as usual on the following day. You can take vitamins/minerals as usual.
This isn’t correct shaws
That would leave 36 hours between last dose levothyroxine and test
It should be maximum of 24 hours before test
Thank you again
Last dose levothyroxine should be 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 evening dose levothyroxine until Sunday morning.
Delay Sunday evening dose levothyroxine until after blood test on Monday morning. Take Monday evening dose levothyroxine as per normal
chubi52
Ditto what SlowDragon says about altering timing. Leave 24 hours, not 36 hours as that would give a false low FT4 result.
Than you
Important to stop taking vitamin B complex a week before ALL BLOOD TESTS as contains biotin
Biotin can falsely affect test results
Thank you
Taken Levo 17 hours before blood draw by mistake 
Blood draw difficulties....
Levo before blood test?
One blood draw - two different FT4 results
Blood test 
