Semenoll effusion both of those can obscure and certainly you know penetrance if you will the isotope and you shouldn't certain mutations as well as forgetting to image quickly again as dr Burkhardt for example HDL ratio that is promulgating the literature of is dependent upon imaging an hour after injection of the isotope and incubation if it's delayed for any reason you need to use a lower cut point and if you don't use a lower cut play might include test is falsely negative when it's actually positive and .
