Sep 5, 2023 · The best way to initially test thyroid function is to measure the TSH level in a blood sample. Changes in TSH can serve as an “early warning system” – often occurring before the …

May 30, 2023 · Thyroid tests tell your healthcare provider how well your thyroid gland works. These tests can help diagnose conditions like hyperthyroidism, hypothyroidism, Graves’ …

Dec 14, 2025 · Different types of thyroid blood tests may be ordered to see how your thyroid gland is functioning. Learn about why you may need a thyroid blood test, what to expect during …

May 19, 2023 · These tests are used to identify levels of hormones produced in the thyroid. You may also be able to use at-home blood tests. Thyroid function tests are a series of blood tests …

Learn about blood and imaging tests used to check how well your thyroid is working and diagnose thyroid diseases, including TSH and T4 tests, and thyroid scans.

In most cases, your TSH level will be the first hormone to be measured, because if this is normal, it is very likely that your thyroid is functioning normally. The exception to this is when a pituitary …

It's done to detect signs of abnormal enlargement, or nodules, on the thyroid, and to guide biopsies of concerning nodules. Thyroid scans using radioactive iodine or technetium (another …

Sep 11, 2025 · Thyroid function tests, including TSH, Free T4, and Free T3, are crucial for evaluating thyroid gland health by measuring hormone levels, which helps diagnose …

What are thyroid function tests? Thyroid function tests, also called thyroid tests or thyroid symptom tests, show how well your thyroid gland is working. These tests are often used to …

Understand thyroid function tests—TSH, T4, T3, thyroglobulin, calcitonin, and antibodies—and how they diagnose thyroid disease and cancer.