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  2. TRH stimulation test - Wikipedia

    en.wikipedia.org/wiki/TRH_stimulation_test

    The TRH test involves administration of a small amount of TRH intravenously, [1] following which levels of TSH will be measured at several subsequent time points using samples of blood taken from a peripheral vein. [citation needed] The test is used in the differential diagnosis of secondary and tertiary hypothyroidism.

  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. Thyroid-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Thyroid-stimulating_hormone

    An increase in TSH above the normal range indicates under-replacement or poor compliance with therapy. A significant reduction in TSH suggests over-treatment. In both cases, a change in dose may be required. A low or low-normal TSH value may also signal pituitary disease in the absence of replacement. [citation needed]

  5. Thyroid disease - Wikipedia

    en.wikipedia.org/wiki/Thyroid_disease

    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 test, where the first approach is to determine whether TSH is elevated, suppressed, or normal. [25]

  6. Fasting isn't for everyone, but it offers more health ... - AOL

    www.aol.com/fasting-isnt-everyone-offers-more...

    Fasting simply means to abstain from food or drink for a period of time - though water and zero-calorie beverages such as tea or black coffee are often permitted.

  7. Euthyroid sick syndrome - Wikipedia

    en.wikipedia.org/wiki/Euthyroid_sick_syndrome

    A fasting response is common in critical illness. NTIS as a result of fasting may be regarded as a healthy and adaptive mechanism that reduces energy expenditure. [10] Fasting in healthy, euthyroid people causes reduced T3 and elevated rT3, although TSH is usually unchanged. [3] [5] [10] Even moderate weight loss can lower T3. [2]

  8. Thyroid hormones - Wikipedia

    en.wikipedia.org/wiki/Thyroid_hormones

    Thyroid-stimulating hormone (TSH) released from the anterior pituitary (also known as the adenohypophysis) binds the TSH receptor (a G s protein-coupled receptor) on the basolateral membrane of the cell and stimulates the endocytosis of the colloid. The endocytosed vesicles fuse with the lysosomes of the follicular cell.

  9. UT Austin will again require SAT or ACT test scores for ... - AOL

    www.aol.com/attract-best-brightest-heres-why...

    The University of Texas is bringing back standardized testing as part of its admissions requirements starting for the 2025 fall semester, citing data that shows knowing students' SAT or ACT test ...

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