Low Dose Vasopressin in Traumatic Shock

Exclusion Criteria

• •Patient is admitted to one of the study hospitals' Emergency Department greater than six hours after injury;
• •Patient has received greater than 4 liters fluid since time of injury;
• •Patient is enrolled in another shock trial;
• •Patient is asystolic or requires CPR (cardiopulmonary resucitation) prior to randomization;
• •Female patient is pregnant by report or suspicion;
• •Patient has known "Do Not Resuscitate" orders or visible/identifiable method of objection to participation (e.g., exclusion bracelet);