Hello – Sorry I can’t give you a quick answer, but you will want to go over the results with your doctor. In general, each lab has its own range of "normal", depending on when the scan was done (ex. 6 vs. 24 hours after taking the initial dose). Results above the lab’s "normal" range are indicative of hyperthyroidism. Also, interpreting the results is not just dependent on the % of uptake, but also whether or not the iodine was spread out evenly throughout your thyroid. If the uptake was concentrated in a small place, this could indicate that an overactive nodule is responsible for causing the hyperthyroidism.
Are you also having antibody tests done, such as TSI (thyroid stimulating immunoglobulin) or TRab (thyrotropin receptor autoantibodies)? These tests will also shed light on whether your hyperthyroidism is caused by Graves’.
Again, sorry I can’t give a specific answer…trust me, I *know* what the wait is like! I drove my doctor’s office nuts calling them for test results. Hopefully, you will get a definitive answer soon.