| Do not screen asymptomatic pregnant patients for subclinical hypothyroidism. | Society for Maternal-Fetal Medicine |
| Do not order multiple tests for the initial evaluation of a patient with suspected thyroid disease. Order thyroid-stimulating hormone level and, if abnormal, follow up with additional evaluation or treatment depending on the findings. | American Society for Clinical Pathology |
| Do not routinely order thyroid ultrasonography in patients with abnormal thyroid function tests if there is no palpable abnormality of the thyroid gland. | Endocrine Society/American Association of Clinical Endocrinologists |
| Do not obtain a total or free triiodothyronine level when assessing levothyroxine dose in patients with hypothyroidism. | Endocrine Society/American Association of Clinical Endocrinologists |
