Thyrotropin-Releasing Hormone Test
(TRH)

Alternate Names

  • TRF Test (Thyrotropin-Releasing Factor Test)

TRH is a hormone produced by the pituitary gland. TSH production is suppressed by high blood levels of T3 and T4. TRH levels are mainly used to diagnose an under-active pituitary gland, and to differentiate between depression and bipolar illness (manic-depressive). After being given a dose of TRH, people with normally functioning or over-active thyroid glands will not have increased blood levels of TSH. TRH levels can also be abnormal in elderly men, and during normal pregnancy.

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Comments on Thyrotropin-Releasing Hormone Test (2 total) Participate in the discussion

Posted 5 years ago
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shobi

Posted 4 years ago
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TRH test shows raised plasma TSH level which is higher at 20 minutes than 60 minutes.This stem is true or false?

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