Hyperthyroidism is too much thyroid hormone. It develops when
the thyroid gland becomes overactive. The thyroid gland is a
butterfly-shaped gland in the front of the neck. It produces
hormones called T3 and T4. They control the body's metabolism.
The Thyroid Gland Copyright © Nucleus Medical Media, Inc. The
doctor will ask about your symptoms and medical and family
history. A physical exam will be done. The exam often reveals: -
Enlarged thyroid gland, also known as a goiter - Rapid pulse
rate - Warm, moist skin - Enlarged red prominent eyes
(opthalmopathy) - Prominent reflexes - Muscle weakness (arms and
legs) - Rash on front of shins Your doctor may order the
following tests: - Blood tests —to measure level of thyroid
hormones and look for thyroid antibodies - Radioactive iodine
uptake test—measures how active thyroid is in taking up the
iodine Treatment will depend on the cause. It will also be
adjusted if you are pregnant. Antithyroid drugs work best for
Graves' disease. They will reduce thyroid activity.