Thyroid Stimulating Hormone (TSH), T3, and T4 Free
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Why do I need a Thyroid Profile?
The thyroid is one of the most important glands in the body. This hormone regulates the metabolism of the body by increasing the rate of the reactions taking place in the body's cells. The test is used to evaluate the symptoms of excess (hyperthyroidism) such as unexplained weight loss, tremor, nervousness, rapid heart rate, diarrhea, or the sensation of always being too hot. Symptoms of too little thyroid hormone (hypothyroidism) are unexplained weight gain, tiredness, dry skin, or the sensation of always being too cold.
Common thyroid disease symptoms: fatigue or depression, enlargement of the thyroid gland or discomfort in the neck area, weight change, pregnancy problems, always feeling too hot or too cold, heart rate or blood pressure irregularities, digestive problems like diarrhea and more frequent bowel movements and urination, and/or muscle and joint fatigue.
The third type of under-functioning is due to poor conversion of T4 to T3. This requires enzymes and co-factors, in particular selenium, zinc and iron. In this condition there are normal or possibly slightly raised levels of TSH, normal levels of T4 but low levels of T3. This requires micronutrients and also T3 to correct.