Hi tomorrow morning I am having my bloods done privately then will be sent to Medicheck should I take my thyroxine before or after ??
Advice please : Hi tomorrow morning I am having... - Thyroid UK
Advice please
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Angela
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SlowDragonAdministrator
Recommended on here that thyroid blood tests should ideally be done as early as possible in morning and fasting. Do not take Levothyroxine dose in the 24 hours prior to test, delay and take immediately after blood draw. This gives highest TSH, lowest FT4 and most consistent results. (Patient to patient tip, best not mentioned to GP or phlebotomist)
Hopefully you are also testing vitamin D, folate, ferritin and B12?
(If also on T3, make sure to take last dose exactly 12 hours prior to test)
What supplements are you taking?
If you are taking vitamin B complex, or any supplements containing biotin, hope you remembered to stop these 3-5 days before any blood tests, as biotin can falsely affect test results
endo.confex.com/endo/2016en...
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