Aa
Aa
A
A
A
Close
Avatar universal

CT Scan with Iodine IV Contrast?

For Hashimoto's, any advice for having a CT scan where they are going to use IV contrast (with iodine)?  Also taking oral barium.  

I read that it may create hyperthyroidism in some cases.  So, should take levothyroxine like normal?  Is selenium or anything else recommended?  

Finally, any experiences you have had?  To my knowledge, I do not have an iodine allergy or renal issues.  But I have read where iodine is contradicted with Hashimoto.  

Thank you!
1 Responses
Sort by: Helpful Oldest Newest
649848 tn?1534633700
COMMUNITY LEADER
Although Iodine is contra-indicated for those of us with Hashimoto's, having the CT scan with contrast (iodine) isn't going to hurt because it will leave your body relatively soon.  

You should talk to the imaging facility or your doctor regarding the barium - do you take that on a regular basis?  If so, why?  

You should also ask about taking your medication prior to the scan or if you need to be off it for a while.  It shouldn't hurt if you're taking selenium, but again, ask because some metals might not go well with the test.
Helpful - 0
2 Comments
Thanks Barb!  Makes sense.  It was an abdominal CT, so the oral barium contrast was just for the test, as well as the IV contrast.

I don't have an endo yet, so basically the only answer you get from a general practitioner is it is 'fine' to be on medication.  They were not knowledgable about iodine or anything else as it relates to Hashimotos.  
Oh - abdominal CT... okay - I've had several of those with contrast and never had any issue for the iodine.  The barium is the bottles of stuff you have to drink prior to the test.  I've had no problems with that either.  That, too, will leave your system relatively quickly, but you'll want to drink plenty of water to get, both, it and the iodine flushed out.

For an abdominal CT, there shouldn't be any trouble with taking your thyroid medication prior to the test but it has to be taken with a cup of water, they might want you to defer your dosage until after the test but that might depend on the time of your test.  If I have them in the morning, I wait to take my medication until after the test.  

You don't need an endo for these things - the imaging facility should have told you all that when you made the appointment.   There are some pcp's that are actually more knowledgeable about Hashimoto's than an endo would be.  Many of us have found that endos are not, typically, the best thyroid doctors.
Have an Answer?

You are reading content posted in the Thyroid Disorders Community

Top Thyroid Answerers
649848 tn?1534633700
FL
Avatar universal
MI
1756321 tn?1547095325
Queensland, Australia
Learn About Top Answerers
Didn't find the answer you were looking for?
Ask a question
Popular Resources
We tapped the CDC for information on what you need to know about radiation exposure
Endocrinologist Mark Lupo, MD, answers 10 questions about thyroid disorders and how to treat them
Herpes sores blister, then burst, scab and heal.
Herpes spreads by oral, vaginal and anal sex.
STIs are the most common cause of genital sores.
Condoms are the most effective way to prevent HIV and STDs.