she wants me to get 2 tests at the Hosp. one is a Bone Scan, dose anyone know about this scan & why do you have to wait 3 hrs. after you get the injection, to have the pictures done? The other one is a nerve test don't know what it is called. I have nerve damage to my right foot. Had surgery to repair a Flexor Tendon in April, 2013, now my foot is worse now than before my surgery. One Dr. think it is nerve damage now. Just nervous about these tests what is next. help if you can thanks.