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What Does The Following Thyroid Test Result Indicate?

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Posted on Tue, 6 Jan 2015
Question: can you tell me what the results of my thyroid test mean in layman terms

THYROID AUTOANTIBODIES (REFL)
Thyroglob Ab SerPl-aCnc< or = 1 4
Thyroperoxidase Ab Ser-aCnc<9 10
T3 SerPl-mCnc76-181 127
T4 Free SerPl-mCnc0.8-1.8 0.8
TSH SerPl-aCnc0.40-4.50 2.17

I have a 3.7cm nodule on my thryoid
doctor
Answered by Dr. Shehzad Topiwala (49 minutes later)
Brief Answer:
Thyroid

Detailed Answer:
Your TSH, free T4 and total T3 are in the normal range.

I see you are no medications.

I have noted your 3.7 cm thyroid nodule.

The thyroid auto antibodies are of two types and you have been tested for both. It appears they are positive meaning they are above the range of normal. However, it would be preferable if you could scan the images of the actual result and upload them here for me to be certain. This is because these results are a bit unusual in terms of the conventional units of measure used to report thyroid autoantibody levels. Please note this does not invalidate the results as different labs can very well have different methods to test for these things.

Thyroid auto antibodies attack the thyroid cells and tend to make them non functional ie incapable of making thyroid hormone in sufficient amounts.
This leads to an elevation in the TSH and low free T4 levels.
Yours are normal at the moment, suggesting that the antibodies have not caused enough damage yet to result in thyroid hormone insufficiency. When I see someone like this in my practice I check their TSH levels at least once a year for life to see if the thyroid has become under active, and if treatment with thyroid hormone is necessary.

A less common possibility is that these are false positive antibody results which occurs in a small minority of the population. This means that although your blood tests positive for these autoantibodies, in reality you actually do not have these in your blood. It is an error in the test.

Regarding the nodule, it may be worth considering a fine needle aspiration biopsy but this requires a comprehensive evaluation that entails an in-person examination by an endocrinologist
Note: For more information on hormonal imbalance symptoms or unmanaged diabetes with other comorbid conditions, get back to us & Consult with an Endocrinologist. Click here to book an appointment.

Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
doctor
Answered by
Dr.
Dr. Shehzad Topiwala

Endocrinologist

Practicing since :2001

Answered : 1663 Questions

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What Does The Following Thyroid Test Result Indicate?

Brief Answer: Thyroid Detailed Answer: Your TSH, free T4 and total T3 are in the normal range. I see you are no medications. I have noted your 3.7 cm thyroid nodule. The thyroid auto antibodies are of two types and you have been tested for both. It appears they are positive meaning they are above the range of normal. However, it would be preferable if you could scan the images of the actual result and upload them here for me to be certain. This is because these results are a bit unusual in terms of the conventional units of measure used to report thyroid autoantibody levels. Please note this does not invalidate the results as different labs can very well have different methods to test for these things. Thyroid auto antibodies attack the thyroid cells and tend to make them non functional ie incapable of making thyroid hormone in sufficient amounts. This leads to an elevation in the TSH and low free T4 levels. Yours are normal at the moment, suggesting that the antibodies have not caused enough damage yet to result in thyroid hormone insufficiency. When I see someone like this in my practice I check their TSH levels at least once a year for life to see if the thyroid has become under active, and if treatment with thyroid hormone is necessary. A less common possibility is that these are false positive antibody results which occurs in a small minority of the population. This means that although your blood tests positive for these autoantibodies, in reality you actually do not have these in your blood. It is an error in the test. Regarding the nodule, it may be worth considering a fine needle aspiration biopsy but this requires a comprehensive evaluation that entails an in-person examination by an endocrinologist