In healthy people just the correct amount of thyroid hormone is produced to keep the body running at ideal levels. As a persons health gets worse the thyroid can make too much (hyperthyroidism) or too little (hypothyroidism).
The hormones that are produced have a direct effect on most of the internal organs in the body including the heart, under the influence of excessive thyroid hormone the heart will beat a lot faster which by itself can be incredibly dangerous.
The thyroids primary purpose is to control part of the metabolism. Or to put it a better way, the thyroid runs the metabolism. An elevated thyroid will raise the metabolisms function, in a lot of instances causing weight loss.
However in some cases the elevated metabolism leads to an increase in appetite, if this increase is big enough the extra amount of food ingested can be larger the even the raised metabolism can deal with and lead to weight gain.
We've already found that weight gain and weight loss are not reliable symptoms of an elevated thyroid on their own so extra symptoms are required to make a good diagnosis.
Before any medical tests for hyperthyroidism are done a grouping of symptoms should be present. Other symptoms include palpitations, fatigue, trembling hands, hair loss, breathlessness, muscle weakness, nervousness, and insomnia to name the most well-known.
Once it's been established that there's a possibility of an elevated thyroid then there are some basic blood tests that can be undertaken to verify the diagnosis.
Usually the first test is the Thyroid Stimulating Hormone (TSH) levels. The pertuitry grand secretes the TSH hormone. It's purpose is to stimulate the thyroid gland to generate more hormone. If the TSH levels are low this usually means the thyroid is producing high levels of the hormone on its own. If the TSH levels are normal then there are more tests that ought to be done before ruling hyperthyroidism out.
An iodine thyroid scan is going to explain if the cause is a single nodule or a whole gland.
The thyroid levels themselves (T3 and T4) can be tested, in most cases all of the thyroid levels will be heightened with the exception of TSH which is likely to be decreased.
Click the links be throughout this article to learn more about hyperthyroidism and hypothyroidism. The two of these disorders can lead to some very severe diseases in the future so it's better to have them checked out sooner than later when it might possibly be too late to do anything about it.
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