Rising Thyroglobulin

Hi. After being well suppressed with very low thyroglobulin your high TSH is surprising. It is good to see you are being retested to check if there was an error in the test. Hope it all works out well for you. 

The Tg of 6 should not be a cause for concern because it's - effectively - a 'stimulated' level. By your TSH being so high, your Tg is increased - in the same way it would be if you had a thyrogen injection or went off your medication for a few weeks.

To compare stimulated and unstimulated is not effective.

My concern for you is how you've got your TSH that high.

You clearly know how to take the tablets so I would suggest:

* check the expiry date on your tablets. Could they have been out of date or stored incorrectly? 

* did the brand of tablets change in the months before you had your blood test? It shouldn't have such a big impact, but some people may have issues

* did you put on a ton of weight between blood tests that might have needed you to increase your dose?

* have you started taking any other kinds of medication that could be interfering - even if you take them at a different time of day? Some drugs and supplements need to be taken at least 4 hours after you thyroxine.

Hi thanks for this, I am concerned that it’s detectable though. Surely if the whole thyroid was removed then even the stimulated Tg should be undetectable? 

I’ve checked all the interactions and the expiry dates and all is fine. The brand has changed though. I’ve put a little weight on but not enough to make this much of a difference.