Hi Lori,
It seems your doctor is ordering the Total serum T3, to
measure the appropriateness of your thyroid medicine
for the tracking of hypothyroidism. However, the TSH is more commonly used by doctors as it is quite accurate.
Without knowing your whole situation, there may be a reason he chooses this for you.
You may want to ask at your next visit why he is ordering the T3 for you. You are paying for the bloodwork and tell him you are curious. Overall, do you feel okay healthwise by using this method?
Dee
NGDF, Asst. online facilittor