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What Does Thyroglobulin Level Of 373 Indicate?

Posted on Thu, 11 Sep 2014

Question: I just found out I have a thyroglobulin level of 373. Should I be concerned

Answered by Dr. Binu Parameswaran Pillai (6 minutes later)

Brief Answer:
Hi

Detailed Answer:
Hello,

Good day.
I would appreciate if you could elaborate on your history. On what context was it done?
Do you have any existing thyroid illness? Are you on any medications?

Regards
Biu

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar

Follow up: Dr. Binu Parameswaran Pillai (15 minutes later)

During a regular blood test, the doc said my TSH was off and he wanted to do more thorough Thyroid tests. My TSH 7.20 and my T3 total is 136. I have never had thyroid issues in the past.

I am on meloxicam for arthritis in my knee and omeprazole for acid reflux.

Answered by Dr. Binu Parameswaran Pillai (1 hour later)

Brief Answer:
Hi

Detailed Answer:
Your TSH is high. Need monitoring in the future. That is not a justification for doing thyroglobulin level. It was probably unnecessary. Thyroglobulin is done in specefic situations like a) in the follow up of thyroid cancer and b) to rule out ectopic thyroid tissue etc.

Not required in routine screening. Thyroglobulin is producd by normal thyroid tissue and as long as you have native thyroid tissue, thyroglobulin will be present

However, antithyroglobulin antibody is often elevated in autoimmune hypothyroidism

Regards
Binu

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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar