Thyroid

[Sassygirl5150]

Hi,
I just had blood work done to check why I have been feeling unwell and lost 15 lbs in the past month with no change to diet or exercise.  My TSH test came back as <0.01 and the T4 Free (not really sure what that is) is 2.00.  What does this mean?  Is this the cause of my fatigue, weight loss and heart racing so fast it feels like it's fluttering out of my chest sometimes?  My last doctor's appointment my resting heart rate was 126.  Any suggestions or ideas of what's going on?

Thank you for your time and responses

[goolarra]

They're doing the right things.  T3 is the other thyroid hormone.  T4 is a "storage" form of the thyroid hormones, but your cells can't use it directly.  First, your body has to convert the T4 to T3, which is the "active" form of the hormones, the form your cells use.  

TSI (thyroid stimulating immunoglobulin) is the antibody marker for Graves'.  

Are they just doing an ultrasound, or is it a nuclear scan?

[Sassygirl5150]

Not on thyroid meds.  Never had any thyroid problems before.  Blood work was always good.  They did the blood work today.  Hopefully I'll have some numbers tonight.

[Sassygirl5150]

No thyroid meds.  Never had a problem with it until now.  Blood work was always good.  Went to the doctor today and during the visit he was checking my pulse and it was so bad he thought I was in A-Fib.  He did an EKG and found out I was not but I was having premature ventricular contractions.  They did two more blood tests.  A T3 and TSI??  But he is thinking I have Grave's disease.  They will do a scan of my thyroid next Thursday and I go back to him the following Thursday.  We will see what happens from here.  Thanks for caring.

[goolarra]

You're not on thyroid meds, are you?

Have you spoken to your doctor yet?

[Super_sally888]

Hello,

also make sure you don't take the thyroid meds on the morning of the blood test,

[Sassygirl5150]

Sorry, that was two different doctor visits within 2 weeks of each other.