Thyroglobulin levels 3 weeks after RAI too high? Too soon?

Hey there

Welcome to the forum, though I'm sorry you need to be here.

Ok, so, this is a bit of a complicated one.

First off, are you saying you got your results off an online system, or are you saying that you took an online blood test and got the results back? I'm hoping it's the first! lol

RAI works on the body for 6 months, so I'm not sure what your doctor was talking about with the 2 - 3 weeks. Wherever it has been absorbed, it wil be working away for 6 months, killing things off which is why if someone needs a second dose then they generally have to wait 6 months after the first before getting the second. Did your WBS show uptake in your neck, or anywhere else?

So over the next 6 months, your TG level should decrease as the RAI works wherever it was taken up, and kills off what it was absorbed into.

Now comes the complicated bit. These things in your lungs didn't show up on the WBS, which means the RAI wasn't taken up by them. This could mean a few things: They aren't thyroid cancer and are something else, they are thyroid cancer but weren't 'active' so didn't absorb the RAI, they are thyroid cancer and they are iodine resistant. So your doctors are going to have to have chats amongst themselves to try and work out how to move forwards and work out what these things are, or if they are just going to leave them be if they are all 8mm and smaller, watching them to see what happens.

So for now, it's too early to guess if the 22.5 result means those lumps in your lungs are thyroid cancer, but another blood test in a few months time will help them with their educated guessing, as they see how that result has changed.

Sorry I couldn't give you anything definitive or 'good', but I hoped it's helped a bit?

Anything else, please do feel free to shout!

Lass

xx

Hey @Lass,

Thank you for always being here for everyone, bless you and I hope your long journey only gets better. I took a blood test at the hospital 3 weeks after my RAI. I am not sure if the endo did this because she wanted to check if my calcium levels got better or for my thyroid levels. Regardless the endo gave up and said my guess was too complicated and referred me over to another endo. She works in the diabetes section of the hospital so my guess is she specials in diabetes. One thing that @PhoenixRising noticed in my other post was that they said the lung nodules might be too small to be picked up by their equipment. Here is the attached report after WBS 5 days after RAI.

Heya Alex,

Yeh, so looking at that report it's mostly backing up what I said. So right now, no idea exactly what the lumps in your lungs are, and will need further investigation.

So bloods in a few months time will help with that, and I wouldn't be surprised if you get another scan in 6 months to see if any have shrunk or vanished, or what they've done. Fingers crossed they're just too small for their glowing to be detected, as that's probably one of the best case scenarios I think.

As I said in another post earlier today, dealing with thyroids and thyroid cancer will certainly teach you patience! lol. Might be a while before they work out what these are, and they'll need time between everything for things to happen and change.

But yeh, December was stupidly busy for me, and then I have been quite unwell. So went MIA from the forum for a bit there. Just trying to catch up now! lol

Lass

xx

Thank you Lass for everything