>> a hospital worker walks into the room carrying a metal oxygen tank. the oxygen tank flies out of the worker's hands, shoots across the room, strikes michael in the head, and the little boy dies. take a look at this video researchers make after michael's death. it shows just how fast that metal oxygen tank kills him. while this mistake is relatively unusual, reports to the u.s. food and drug administration reveal additional cases. when you're getting an mri, make sure there's no metal on or around you. at number 2, the e.r. waiting game. 2-year-old malia jeffers has a 101 degree fever. a bruise on her cheek the size of a marble. trouble walking. her parents rush her to the