The pentameter is a test to determine whether a patient’s thyroid function is hyperfunctional or hypothyroid. The contents of the five tests may vary slightly from hospital to hospital, but they are all used to determine the patient’s thyroid function and guide treatment. 1. The five tests include thyrotropin, thyroxine, free thyroid hormone, triiodothyronine, and free triiodothyronine. This test can more clearly determine whether the patient’s thyroid function is hyper or hypothyroid. 2. The five items include thyrotropin, free thyroid hormone, free triiodothyronine, thyroglobulin antibody and thyroid peroxidase antibody. These two antibody tests are added to determine thyroid autoimmune diseases, and they are important laboratory indicators for determining Hashimoto’s thyroiditis. If the lab tests are abnormal for thyroid function, you need to be seen promptly in the endocrinology department.