>> my husband and i were in awe. we're like, can you repeat that again? and she said frankly, i lost sense of direction. >> they messed up and did this eye and then did this eye. >> surgeons are supposed to initial or mark the correct side like they did with jesse. but here's one way they can still get confused. >> we place drapes over the entire area to keep it sterile. mistakes can be made very rarely when you have draping that obscures the mark. >> in the u.s. seven patients every day suffer body part mix-ups. just before surgery make sure you confirm with the nurse and the surgeon the correct body part and side of your operation and don't be shy about doing it. at number 5 radical radiation. this isn't a bad haircut. it's the damage done by too much radiation. michael heuser goes in for a ct scan of his head. clumps of hair fall out.