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  2. TRH stimulation test - Wikipedia

    en.wikipedia.org/wiki/TRH_stimulation_test

    The test is used in the differential diagnosis of secondary and tertiary hypothyroidism. First, blood is drawn and a baseline TSH level is measured. Then, TRH is administered via a vein. After 30 minutes blood is drawn again and the levels of TSH are measured and compared to the baseline. Some authors recommend additional blood sampling at 15 ...

  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. 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. A radioactive ...

  5. Should You Get Your Thyroid Hormone Levels Checked? - AOL

    www.aol.com/lifestyle/thyroid-hormone-levels...

    Reader's DigestSilent Signs of a Thyroid ProblemKnow the symptoms of an overactive and underactive thyroid before it interferes with your life. Several mysterious symptoms—from weight changes to ...

  6. Thyrotoxic periodic paralysis - Wikipedia

    en.wikipedia.org/wiki/Thyrotoxic_periodic_paralysis

    TPP is distinguished from other forms of periodic paralysis (especially hypokalemic periodic paralysis) with thyroid function tests on the blood. These are normal in the other forms, and in thyrotoxicosis the levels of thyroxine and triiodothyronine are elevated, with resultant suppression of TSH production by the pituitary gland.

  7. Thyroid-stimulating hormone - Wikipedia

    en.wikipedia.org/wiki/Thyroid-stimulating_hormone

    Any inappropriateness of measured values, for instance a low-normal TSH together with a low-normal T 4 may signal tertiary (central) disease and a TSH to TRH pathology. Elevated reverse T 3 (RT 3) together with low-normal TSH and low-normal T 3, T 4 values, which is regarded as indicative for euthyroid sick syndrome, may also have to be ...

  8. Common thyroid drug levothyroxine linked to bone mass loss - AOL

    www.aol.com/lifestyle/common-thyroid-drug-levo...

    Hypothyroidism is diagnosed by looking at the free thyroxine (T4) levels in people with elevated TSH levels, and comparing the ratio between them. People with high TSH and low T4 get a diagnosis ...

  9. Thyrotoxic myopathy - Wikipedia

    en.wikipedia.org/wiki/Thyrotoxic_myopathy

    Thyrotoxic myopathy is usually diagnosed by a neurologist who has extensive experience diagnosing neuromuscular disorders. There are many types of neuromuscular disorders that present similar physical symptoms. Extensive clinical tests are performed first to determine if there is a neuromuscular disorder and then to determine which disorder it is.