what is tsh with reflex
TSH with reflex is basically an instruction to the lab. It means do the TSH test, and if that is abnormal, do FT4 also So the TSH they came up with is just your TSH. No difference. TSH with reflex is basically an instruction to the lab. It means do the TSH test, and if that is abnormal, do FT4 also So the TSH they came up with is just your TSH. No difference. Comment. Message exceeded the 8000 character limit.