HealthCareMagic is now Ask A Doctor - 24x7 | https://www.askadoctor24x7.com

Get your health question answered instantly from our pool of 18000+ doctors from over 80 specialties
159 Doctors Online

By proceeding, I accept the Terms and Conditions

Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

HCM Blog Instant Access to Doctors
HCM BlogQuestions Answered
HCM Blog Satisfaction

Can Radioiodine I -131 Therapy Be Done After A CT Scan With Contrast?

I had a total thyroidectomy Dec 19,2016. I was scheduled for an I-131 test on Feb 22. Due to a trip to the emergency room in which I was given a CT scan w/contrast I am unable to have the I-131. I am told I have to wait another 6 weeks to have it. I have heard/read about Thyrogen injections that are given in some cases to patients who are going to have the I-131 test. Could I request this and possibly shorten my 6 week wait? I feel so exhausted and weak already I don't know how I'll get through another 6 weeks. Plus, I'm worried about my TSH level getting too high.
Mon, 10 Sep 2018
Report Abuse
Internal Medicine Specialist,  's  Response
Hi,

It is better to postpone radioiodine therapy after contrast CT.

Iodine in iodinated contrast agents (ICAs) interferes with radioactive iodine treatment (RAIT) and diagnostic scans in patients with differentiated thyroid carcinoma (DTC) because it can compete with ¹³¹I.

Few studies have shown that it is better to postpone 3-4 months after radioiodine therapy after contrast CT.

Hope I have answered your query. Let me know if I can assist you further.

Regards,
Dr. Penchila Prasad Kandikattu,
Internal Medicine Specialist
I find this answer helpful
Disclaimer: These answers are for your information only and not intended to replace your relationship with your treating physician.
This is a short, free answer. For a more detailed, immediate answer, try our premium service [Sample answer]
Share on
 

Related questions you may be interested in


Loading Online Doctors....
Can Radioiodine I -131 Therapy Be Done After A CT Scan With Contrast?

Hi, It is better to postpone radioiodine therapy after contrast CT. Iodine in iodinated contrast agents (ICAs) interferes with radioactive iodine treatment (RAIT) and diagnostic scans in patients with differentiated thyroid carcinoma (DTC) because it can compete with ¹³¹I. Few studies have shown that it is better to postpone 3-4 months after radioiodine therapy after contrast CT. Hope I have answered your query. Let me know if I can assist you further. Regards, Dr. Penchila Prasad Kandikattu, Internal Medicine Specialist