A member asked:

Is this a correct calculation of tsh response to a trh injection? : subtract baseline from the 30min tsh value after injection. between 8,5 to 20 mu/ml is a normal response. so what if my baseline tsh is 1,9 and my 30min value is 10,2. (result 8.1?

Q: is this a correct calculation of tsh response to a trh injection? : subtract baseline from the 30min tsh value after injection. between 8,5 to 20 mu/ml is a normal response. so what if my baseline tsh is 1,9 and my 30min value is 10,2. (result 8.1?

: This test is not approved by FDA in the USA, mostly used in research only. With normal thyroid function: TSH rises by 2.0 μU/mL or MORE within 60 minutes and normal response is 20 minute TSH value HIGHER than 60 min TSH. If your 60 minute value is lower than 10.2, you have a normal thyroid function.

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Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

This test is not approved by FDA in the USA, mostly used in research only. With normal thyroid function: TSH rises by 2.0 μU/mL or MORE within 60 minutes and normal response is 20 minute TSH value HIGHER than 60 min TSH. If your 60 minute value is lower than 10.2, you have a normal thyroid function.

Answered 2/5/2023

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A member asked:

Is this a correct calculation of tsh response to a trh injection? : subtract baseline from the 30min tsh value after injection. between 8,5 to 20 mu/ml is a normal response. so what if my baseline tsh is 1,9 and my 30min value is 10,2. (result 8.1?

A doctor has provided 1 answer

Dr. Hiep Le answered

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