Hi I have just got my results because but not sure what to make of it please. They are in range but only just from what I can see. I'm currently on 100 mg of levo for underactive. I have been feeling awful but feeling better over past week or so when took blood test. I've changed my hrt. Reduced and waiting a lot longer before taken anything like coffee or vitamins after levo dose. Would thus be why?
No other medication or supplements at same as Levothyroxine, leave at least 2 hour gap.
Some like iron, calcium, magnesium, HRT, omeprazole or vitamin D should be four hours away
(Time gap doesn't apply to Vitamin D mouth spray)
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
Increasing number of members find it smoother/more tolerable to split levothyroxine as two smaller doses, half dose waking, half dose at bedtime.
It might also possibly improve conversion rate of Ft4 to Ft3
Similarly if normally splitting your levothyroxine, take whole daily dose 24 hours before test
Exactly what vitamin supplements are you currently taking
IMPORTANT to stop any vitamin supplements that contain biotin (eg vitamin B complex) 5-7 days before ALL blood tests as biotin can falsely affect test results
Previous post 5 days ago …..advised to test early morning and last dose levothyroxine 24 hours before test
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My latest test results, still not well
Help with blood test results 
Totally lost having had my blood test results
are these test results ok
Private blood test results
