In preparation for the appointment Tuesday, I am sending you a PM with some info that will be useful for you. I highly recommend reading at least the first two pages of the paper linked within. To access the PM, just click on your name and then from your personal page, click on messages.
http://www.medhelp.org/user_journals/show/2019570/Diagnosing-Treating-Hypothyroidism-A-Patients-Perspective?personal_page_id=12021
I will also forward later any info on doctors in your area that have been recommended by other thyroid patients.
I currently live in Philadelphia very close to Bucks and Montgomery counties in Pennsylvania. We are heading back to the doctor on Tuesday and we will be able to fully discuss the blood test results then. I will see what the doctor says. Child still sluggish and not losing any weight.
I would be very leery of a doctor that only ran those tests. Free Thyroxine Index, T3 Uptake and Total T4 are outdated and not nearly as useful as those for the biologically active thyroid hormones, Free T4 and Free T3. Although affected by many variables, TSH can help in the initial diagnosis, to distinguish between primary hypothyroidism, which was not present, and central hypothyroidism, which is a dysfunction in the hypothalamus/pituitary system. You should go back and insist on testing for the latter three, and make sure they always test for Free T4 and Free T3 every time.
As you proceed, keep in mind that a good thyroid doctor will treat a hypothyroid patient clinically by testing and adjusting Free T4 and free T3 as needed to relieve symptoms, without being constrained by resultant TSH levels. Symptom relief should be all important, not just lab results.
If you will tell us your location, perhaps we can suggest a doctor that has been recommended by other thyroid patients in the area.