Went for closed MRI, half way thru I get pulled ba...

Went for closed MRI, half way thru I get pulled back out to inject me with dye. I told her I was allergic to iodine. She said it didn't have any in it. She puts me back in the tube and I break out in hives! It took 30 mins for someone to get me some benadryl! They were unprepared for my medical emergency! By the time I got home I was covered in hives!