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Circulation Test
Circulation Test

... Give a brief description of the endocrine system. Explain the different types of hormones. Explain the difference between steroidal and non steroidal hormones. Explain the difference between a positive and negative feedback loop. What is the difference between an exocrine vs. endocrine gland. Name f ...
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... B. Thyrotoxicosis without hyperfunction of the thyroid gland 4. Distruction  thyroiditis  subacute de Quervain thyroiditis  Silent thyroiditis  Drug induced (amiodarone, interferon-alfa)  Irradiation, 5. External intake  Iatrogenic  Factitia  foods (« hamburger thyrotoxicosis ») ...
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... might seem like a simple goal to achieve. The truth is hormone replacement therapy is complex because there exists two very different thyroid hormones and because levels of thyroid hormone in the blood do not always reflect the amount of thyroid hormone within the cells where the hormone exerts its ...
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Do You Have A Low Thyroid?

... At night before going to bed, shake your thermometer down to 94 degrees and set your alarm 10 minutes earlier than you need to get up. In the morning, before getting out of bed or doing any activity, place the thermometer deep in your armpit next to your skin. Leave for 10 full minutes, read and rec ...
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Endocrine System - Robert P. Brabham Middle School

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Hyperthyroidism



Hyperthyroidism, also known as over active thyroid and hyperthyreosis, is the condition that occurs due to excessive production of thyroid hormone by the thyroid gland. Thyrotoxicosis is the condition that occurs due to excessive thyroid hormone of any cause and therefore includes hyperthyroidism. Some, however, use the terms interchangeably. Signs and symptoms vary between people and may include irritability, muscle weakness, sleeping problems, a fast heartbeat, poor tolerance of heat, diarrhea, enlargement of the thyroid, and weight loss. Symptoms are typically less in the old and during pregnancy. An uncommon complication is thyroid storm in which an event such as an infection results in worsening symptoms such as confusion and a high temperature and often results in death. The opposite is hypothyroidism, when the thyroid gland does not make enough thyroid hormone.Graves' disease is the cause of about 50% to 80% of case of hyperthyroidism in the United States. Other causes include multinodular goiter, toxic adenoma, inflammation of the thyroid, eating too much iodine, and too much synthetic thyroid hormone. A less common cause is a pituitary adenoma. The diagnosis may be suspected based on signs and symptoms and then confirmed with blood tests. Typically blood tests show a low thyroid stimulating hormone (TSH) and raised T3 or T4. Radioiodine uptake by the thyroid, thyroid scan, and TSI antibodies may help determine the cause.Treatment depends partly on the cause and severity of disease. There are three main treatment options: radioiodine therapy, medications, and thyroid surgery. Radioiodine therapy involves taking iodine-131 by mouth which is then concentrated in and destroys the thyroid over weeks to months. The resulting hypothyroidism is treated with synthetic thyroid hormone. Medications such as beta blockers may control the symptoms and anti-thyroid medications such as methimazole may temporarily help people while other treatments are having effect. Surgery to remove the thyroid is another option. This may be used in those with very large thyroids or when cancer is a concern. In the United States hyperthyroidism affects about 1.2% of the population. It occurs between two and ten times more often in women. Onset is commonly between 20 and 50 years of age. Overall the disease is more common in those over the age of 60 years.
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