For the fifth straight year, a preventable safety mistake known as ‘Failure to Rescue’ is the leading cause of preventable death in U.S. hospitals. More than surgical mistakes, the wrong or overdose of drugs, or unforeseeable complications, ‘Failure to Rescue’ is the most common preventable problem. 'Condition H' allows a patient or loved one to summon emergency help, the same emergency number that doctors and nurses use, when they feel distress. This procedure may save your life.