O.K, so after, the disaster of lst testing with medichecks...what is the process with abstaining from tablets, vitamins etc before testing. I currently take 200mcg of Levothyroxine daily, I take a daily vit D spray (DLUX300), I take a ferrous sulphate supplement daily, complete vitamin B without folate supplement and vitamin K?
Hopefully some things will have improved somewhat
Stopping any supplements that contain biotin a week before testing - that will include most vitamin B complex
endo.confex.com/endo/2016en...
endocrinenews.endocrine.org...
Perhaps also stop vitamin K -- it might make blood vow better
If testing ferritin levels, stop iron supplements a week before to get accurate test result on ferritin
Don't take vitamin D on morning of test.
Recommended on here that all thyroid blood tests should ideally be done as early as possible in morning and fasting. This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)
Last Levothyroxine dose should be 24 hours prior to test, (taking delayed dose immediately after blood draw).
Thanks SlowDragon. I will make a note and make sure I do this right this time around.
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