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  2. Hyperthyroidism - Wikipedia

    en.wikipedia.org/wiki/Hyperthyroidism

    The diagnosis of hyperthyroidism is confirmed by blood tests that show a decreased thyroid-stimulating hormone (TSH) level and elevated T 4 and T 3 levels. TSH is a hormone made by the pituitary gland in the brain that tells the thyroid gland how much hormone to make. When there is too much thyroid hormone, the TSH will be low.

  3. Thyroid function tests - Wikipedia

    en.wikipedia.org/wiki/Thyroid_function_tests

    Thyroid function tests (TFTs) is a collective term for blood tests used to check the function of the thyroid. [1] TFTs may be requested if a patient is thought to suffer from hyperthyroidism (overactive thyroid) or hypothyroidism (underactive thyroid), or to monitor the effectiveness of either thyroid-suppression or hormone replacement therapy.

  4. Euthyroid sick syndrome - Wikipedia

    en.wikipedia.org/wiki/Euthyroid_sick_syndrome

    In critical illness, the activity of different deiodinases is altered. Humoral and neuronal inputs at the level of the hypothalamus may adjust the set point of thyroid homeostasis. This may play an important role in the pathogenesis of the central component of thyroid allostasis in critical illness, tumors, uremia and starvation (TACITUS). [9]

  5. Thyroid disease - Wikipedia

    en.wikipedia.org/wiki/Thyroid_disease

    The most useful marker of thyroid gland function is serum thyroid-stimulating hormone (TSH) levels. TSH levels are determined by a classic negative feedback system in which high levels of T3 and T4 suppress the production of TSH, and low levels of T3 and T4 increase the production of TSH. TSH levels are thus often used by doctors as a screening ...

  6. Thyrotoxic periodic paralysis - Wikipedia

    en.wikipedia.org/wiki/Thyrotoxic_periodic_paralysis

    The abnormality in the channel is thought to lead to shifts of potassium into cells, under conditions of high thyroxine (thyroid hormone) levels, usually with an additional precipitant. Treatment of the low levels of potassium in the blood, followed by correction of the hyperthyroidism, leads to complete resolution of the attacks.

  7. 9 Signs Your Thyroid Is Making You Gain Weight - AOL

    www.aol.com/news/9-signs-thyroid-making-gain...

    Going up a couple of pant sizes could be caused by any of these 'healthy' habits secretly behind your weight gain, but it's also one of the top symptoms of hypothyroidism. Also called an ...

  8. Signs and symptoms of Graves' disease - Wikipedia

    en.wikipedia.org/wiki/Signs_and_symptoms_of...

    In sub-clinical hyperthyroidism, serum TSH is abnormally low, but T4- and T3-levels fall within laboratory reference ranges. [47] It primarily affects the skeleton and the cardiovascular system (abnormalities in other systems have also been reported), in a similar but less severe and less frequent way than overt hyperthyroidism does.

  9. Thyroid-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Thyroid-stimulating_hormone

    TSH is secreted throughout life but particularly reaches high levels during the periods of rapid growth and development, as well as in response to stress. The hypothalamus, in the base of the brain, produces thyrotropin-releasing hormone (TRH). TRH stimulates the anterior pituitary gland to produce TSH.

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