Am I right or wrong ... when someone had TT should they take the thyroxine before the bloodtest or not. Considering that TT patients don't have any hormon activity there anymore shouldn't they take the medication before the bloodtest to give some kind reading as a base for lowering/raisin the dozage? I actually had test 2 weeks ago without the medication ( I am TT ) and of course it had dropped from the previous one and therefore dr asked me to lower my dozage to 50mcg per day. Test in september was ok and was allowed to stay 75-100 mcg per day taking turns daily. So in my thinking I should have had the medicine before bloodtest to see how my levels are everyday with the thyroxin and keep that as a starting point. People who have thyroids have of course all sort of activity wether its hypo/hyper ( its still activity) and of course they need to drop the thyroxine before blood test to see their true reading to get their medication in the right tracks.