Critical Care and Emergency Medicine researchers at Cooper University Hospital have published a research study in the Journal of the American Medical Association (JAMA), one of the leading medical journals. Their research, which was a large multicenter study of adult patients admitted to the Intensive Care Unit (ICU) after resuscitation from cardiac arrest, found that exposure to hyperoxia, or excessively high oxygen levels in the blood, is a common occurrence and an independent predictor of in-hospital mortality.