Thyroid malabsorbtion test

[Tanyaking]

Hi,

Has anyone had a test for thyroid malabsorbtion ? Where you're given 700 mg of thyroxine and bloods taken every 20 mins for 4 hours?

X

[shaws Administrator]

Hi Tanyaking

I haven't heard of this test and I assume it's a test to fathom out whether or not your body is accepting levothyroxine (or converting it)? (just a guess). It may be that you have thyroid hormone resistance which some people do have. A link for info if it is connected:-

web.archive.org/web/2010103...

"I am not a medical professional and this information is not intended to be a substitute for medical guidance from your own doctor. Please check with your personal physician before applying any of these suggestions"

[eeng]

No, but don't worry about it. Some people who are suspected of not taking their thyroxine medication are made to take a week's dose at a time in front of their doctor. Your body will only convert the T4 into the active T3 hormone to suits its needs (assuming you absorb and convert it properly), so you won't become hyper. Unless you are allergic to the fillers (which presumably you should know by now) you probably won't feel any different.