Hypothyroidism - primary

Injury	Disease	Nutrition	Poison

Symptoms	Surgery	Test	Special Topic

Primary and secondary hypothyroidism

Hypothyroidism - primary

Treatment:

The purpose of treatment is to replace the deficient thyroid hormone. Levothyroxine (T4) is the most commonly used medication, but a preparation of T3 is also available. Most people feel their best when TSH is brought into the 1 to 2 mcIU/mL range. The lowest dose effective in relieving symptoms and normalizing blood tests is given.

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Life-long therapy is needed as relapses will occur if therapy is interrupted. Medication must be continued even when symptoms subside.

After replacement therapy has begun, report any symptoms of increased thyroid activity (hyperthyroidism), such as restlessness, rapid weight loss, heat intolerance, and sweating.

Myxedema coma is treated by intravenous thyroid replacement and steroid therapy. Supportive therapy of oxygen, assisted ventilation, fluid replacement, and intensive care nursing may be indicated.

Expectations (prognosis):

With early treatment, the condition can be completely controlled. However, relapses will occur if the medication is not continued. Myxedema coma can result in death.

Complications:

Myxedema coma, the most severe form of hypothyroidism, is rare. It may be caused by an infection, illness, exposure to cold, or certain medications. Symptoms and signs of myxedema coma include:

unresponsiveness
decreased breathing
low blood pressure
low blood sugar
below normal temperature

Other complications include:

Calling your health care provider:

Call your health care provider if signs or symptoms of hypothyroidism or myxedema are present

Call your health care provider if restlessness, rapid weight loss, heat intolerance, rapid heart rate, excessive sweating, or symptoms of hyperthyroidism occur after beginning thyroid replacement.