This article from Newsweek reveals some interesting information on medical errors.
Undoing a culture is hard, especially one steeped in hierarchy and intimidation, where doctors tend to reign supreme and nurses, pharmacists, and technicians fall into the ranks below. “What underlies it is arrogance,” says Pronovost, an anesthesiologist and director of Hopkins’s Quality and Safety Research Group. In his book he describes a run-in with a surgeon who refused to switch from latex to non-latex gloves during a hernia operation, despite Pronovost’s concern that the patient was having a potentially fatal latex-allergy reaction. It was only after a nurse picked up the phone to call the hospital president that the surgeon relented. “This patient,” Pronovost writes, “could have died from ignorance and arrogance—a lethal combination.”