Antithyroglobulin Antibody

This is a blood test that is used to diagnose thyroid disease such as Hashimoto's thyroiditis or chronic lymphocytic thyroiditis in children. It does this by testing for antibodies which have been formed against the thyroid by your own body. This antibody is also present in a number of thyroid diseases; however, these are the two most common.

PREPARATION FOR TEST

No preparation or fasting is necessary. A blood sample is obtained by inserting a needle into a vein in the arm.

NORMAL FINDINGS

Titer less than 1:100

Ranges for normal findings may vary among different laboratories and hospitals. You should always check with your doctor after having lab work or other tests done to discuss the meaning of your test results and whether your values are considered within normal limits.

MEANING OF TEST

Your caregiver will go over the test results with you and discuss the importance and meaning of your results, as well as treatment options and the need for additional tests if necessary.

OBTAINING THE TEST RESULTS

It is your responsibility to obtain your test results. Ask the lab or department performing the test when and how you will get your results.