It won't matter that much about with the T4 med, but don't take the T3 prior to the test, or you will have a false high, since T3 is pretty fast acting. Main thing with T4 med is to be consistent. Don't take T3 prior to labs.
I had to cancel my appointment yesterday for blood work, because I didn't think and popped my T3 med about an hour before my appointment...... Rescheduled my blood draw for today and didn't take either of my meds before I went; then forgot them when I got home.... but that's okay because my blood draw was late morning....... I did miss the T3 and have felt tired/groggy most of the afternoon.
Thanks for the answer.
Ok, so miss the morning dose, but ok to take the night before. Got it.
Hope you feel better soon.
I took my T4 at 7am and had my blood draw at 1pm today. This is the first time I haven't had the draw first thing in the morning. We'll see what the results say tomorrow. I agree with Barb, it shouldn't make much of a difference.
Just to clarify -- taking T4 med prior to a blood draw won't make much difference......... if you are on a T3 med, do NOT take it the morning of the blood draw, no matter what time of day the draw is, because you don't know how long it will stay in your system.
Thanks very much. I understand. I usually take my T3 PM dose at 5pm. The blood test will probably be at 7am the next day. Do you think I should miss the PM dose the day before too, just to be on the safeside.