The results from my Uptake and scan was 41.47% which is hyperthyroid, thyroid lobes enlarged with homogeneous trapping of radioiodine. Also, no photopenic area noted. What does all this mean. However, all my blood work is normal. My endo. says my thyroid is working fine but still wants to do a FNA for a left nodule that measures 1.2cm. Should I be worried?