Free hormones are the active ones. These values are more appropriate indicators in certain cases. The prescribing physician would order tests based on these factors
T 3 and T4 are total levels which consist of free T3 and free 4 and protein..
Free levels are active levels functionally..
Routinely we do total levels and are usully enough.. . Some specific indications we need free levels...
Consult nearby endocrinologist..!!
I wanted to confirm if I should do FBS, TSH, FT4 tests after 3 hours (8am) of taking Thyronorm 25 mcg at
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