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Why would a person have thyroid problems if his anterior pituitary gland was damaged?
Anterior pituitary secretes the hormone THS. That is thyroid stimulating hormone. In absence of the anterior pituitary the hormone is not secreted by the thyroid and you get the hypothyroidism.
What hormone can result in a goiter?
It is a hormone called T4, or thyroxin. What would normally happen is that Thyroid Stimulating Hormone (TSH) from the anterior pituitary would stimulate the thyroid to release T4. When enough T4 is produced, it inhibits TSH, or thyroid stimulating hormone, from being secreted. However if enough T4 is not released to inhibit TSH (probably due to an iodine deficiency), then TSH keeps on secreting, overstimulating the thyroid and causing the swelling known as goiter.
What is the medical term meaning goiter?
If the amount of stimulating hormone is excessive, the thyroid will both enlarge and secrete too much thyroxin. The result--hyperthyroidism with a goiter. Graves' disease is the most common form of this disorder.
What will happen when Thyroid Stimulating Hormone value is greater than the reference level?
When TSH is high, it stimulates the thyroid to produce more thyroid hormones. An elevated TSH usually means a hypOthyroid patient. Rarely, an elevated TSH may result in hypERthyroid symptoms when the feedback system that controls TSH production is not working properly.
What is secondary hypothyroidism?
Secondary hypothyroidism is a condition where the thyroid gland produces insufficient hormones due to a problem with the pituitary gland, which fails to produce adequate thyroid-stimulating hormone (TSH). This can result from various factors, including tumors, trauma, or other diseases affecting the pituitary. Unlike primary hypothyroidism, where the issue originates in the thyroid itself, secondary hypothyroidism indicates that the pituitary gland's dysfunction is the root cause of low thyroid hormone levels. Diagnosis typically involves assessing TSH and thyroid hormone levels, along with imaging studies if necessary.
What bloods in am flag tft mean?
In a thyroid function test (TFT), "AM" typically refers to the time of day the blood sample is taken, usually in the morning. This is important because thyroid hormone levels can fluctuate throughout the day. The key components measured in a TFT include Thyroid-Stimulating Hormone (TSH), Free T4, and sometimes Free T3, which help assess thyroid function and diagnose conditions like hypothyroidism or hyperthyroidism. An abnormal result can indicate an underactive or overactive thyroid.
What does a TSH test of 6.5 mean?
A TSH (thyroid-stimulating hormone) test result of 6.5 mIU/L typically indicates that the thyroid gland may not be producing enough thyroid hormones, a condition known as hypothyroidism. Normal TSH levels generally range from about 0.4 to 4.0 mIU/L, so a value of 6.5 suggests that the pituitary gland is signaling for more thyroid hormone production due to insufficient levels in the body. It is important to discuss this result with a healthcare provider, who may recommend further testing or treatment options.
What hormone whose production in inadequate amounts of myxedema?
The hormone whose production is inadequate in myxedema is thyroid hormone, specifically thyroxine (T4). Myxedema is a severe form of hypothyroidism, which occurs when the thyroid gland does not produce enough thyroid hormone. This leads to a variety of symptoms, including fatigue, weight gain, cold intolerance, and dry skin.
What does Diffuse atrophy of the thyroid gland cause?
Diffuse atrophy of the thyroid gland can lead to hypothyroidism, a condition characterized by insufficient production of thyroid hormones. This can result in symptoms such as fatigue, weight gain, cold intolerance, and depression. Additionally, it may cause elevated levels of thyroid-stimulating hormone (TSH) as the pituitary gland attempts to stimulate the underactive thyroid. Long-term atrophy can also contribute to goiter development or other thyroid-related disorders.
What disease can result in anemia because its stimulating hormone is no longer being produced?
diabetes mellitus
What does a 1.9 thyroid test mean?
Assuming that this is the result of a thyroid stimulating hormone (TSH) test, a 1.9 means that you are within the normal range. While a normal TSH varies from person to person, the range that is typically followed by doctors is .3 to 4.5. A .3 is on the hyperthyroid (overactive thyroid) end and a 4.5 is on the hypothyroid (under active thyroid) end of the spectrum. Talk with your doctor if you have any questions or concerns as it relates to your thyroid condition and symptoms.
Difference between endemic and colloidal goiter?
Hyperthyroid goiter: If the amount of stimulating hormone is excessive, the thyroid will both enlarge and secrete too much thyroxin. The result--hyperthyroidism with a goiter. Graves' disease is the most common form of this disorder. the level of thyroid hormone is High. Euthyroid goiter: The thyroid is the only organ in the body to use iodine. If dietary iodine is slightly inadequate, too little thyroxin will be secreted, and the pituitary will sense the deficiency and produce more TSH. The thyroid gland will enlarge enough to make sufficient thyroxin. This form of goiter does not alter thyroid function in any significant way (colloid goiter). the level of thyroid hormone is Normal.
