serum TSH, T3 and T4 levels, normal T3 is 100-200 ng/dL, T4 is 4.5-11.2 mcg/dL; free T4 normal range is 0.7-1.8 ng/dL; TSH level should be between 0.5 and 3.0 miilliunits/L in those treated for thyroid disorder; resolution of symptoms of hypothyroidism, fatigue, edema, hair loss, intolerance, and lethargy