Proper history of illness and physical examination is important for diagnosis. Blood tests to check hormone levels can also help with the diagnosis. These may include:
- Thyroid-stimulating hormone (TSH)
- T4 (thyroxine)
If your test results or physical exam of the thyroid are abnormal, your doctor may order a thyroid ultrasound, or thyroid scan, to check for nodules or inflammation.
Thyroid hormone medicine:
- Reduces or eliminates symptoms of hypothyroidism. Symptoms usually improve within the first week after you begin therapy. All symptoms usually disappear within a few months.
- May reduce the risk of slowed physical growth, intellectual disability, and behavioral problems in infants and children.