This informational text resource is intended to support reading in the content area. This article explores a controversial clinical trial being conducted by the University of Pittsburgh. Scientists are exploring more efficient ways to save lives when patients enter the emergency room in critical condition. The idea involves draining the patient's blood and replacing it with freezing saltwater to induce a hypothermic state that will buy doctors more time to save human lives. This is causing an ethical debate as patients will be essentially clinically dead during this procedure. The technique is known as Emergency Preservation and Resuscitation (EPR).