A new survey finds that hospital nurses are suffering from burnout. According to a study published in the journal Health Affairs, one of every three nurses surveyed under age 30 plan to leave their jobs within the next year. More than two out of five scored high on a ``burnout inventory'' used to measure emotional exhaustion and the extent to which they felt overwhelmed by their work. The nurses blame rising patient loads and a shortage of nurses. They also say there's a decline in the quality of patient care. More than half of those surveyed say they had even been subjected to verbal abuse on the job. A researcher at the University of Pennsylvania, where the study was based, says hospitals need to offer personnel policies and benefits comparable to those offered by other businesses.