 - Normal thyroid function indicated by thyroid examination to include total and free T3 Triiodothyronine , T4 total and free Thyroxine, levothyroxine, TSH Thyroid stimulating hormone, anti-TSH-receptor anti-TSHR antibody, anti-thyroperoxidase anti-TPO antibody, anti-thyroglobulin antibody anti-ATA as well as thyroid ultrasound. 