Goitre laboratory findings

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

• Blood hormone level tests: Blood tests of thyroid hormone can determine the function of thyroid and pituitary glands. Usually, serum thyroid hormone levels (T3, T4) and serum thyroid-stimulating hormone (TSH) are detected. Goiter associated with an overactive thyroid usually involves a high level of thyroid hormone and a lower than normal TSH level in the blood.
• An antibody test: For some causes of goiter such as Hashimoto’s thyroiditis and Graves-Basedow disease, a blood test about antibodies may be helpful to the diagnosis.

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