**NOTE: All laboratory testing requires an authorizing physician. DHA Laboratory offers a patient direct program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**
This test is used to differentiate the diagnosis of thyroiditis and hypothyroidism. Thyroid antibodies develop when the immune system targets the thyroid gland. This can cause thyroiditis, and can disrupt thyroid function.