Hemorrhage remains a leading cause of preventable death in trauma, and many patients are still alive when EMS arrives. In those cases, blood loss – not airway or access – is often the limiting factor. Crystalloids can temporize, but they do not replace oxygen-carrying capacity or support coagulation.
Prehospital blood programs allow paramedics to initiate transfusion in the field or during transport, bringing definitive hemorrhage care earlier into the resuscitation timeline. The model is well established in military medicine and is now being successfully adopted by civilian EMS systems across the U.S.
Data suggest that more than a third of severely bleeding trauma patients could survive with timely blood replacement, yet only a small percentage of EMS agencies currently carry blood. Programs have shown benefit not only in trauma, but also in obstetric hemorrhage, GI bleeding, and select pediatric emergencies.
The main barriers are regulatory and financial. While scope-of-practice restrictions persist in a few states, most pathways are now clearly defined. Cost remains a challenge, but federal demonstration grants and recent NHTSA funding signal growing institutional support. Long-term sustainability will depend on state-level policy and startup assistance.
Prehospital blood is no longer experimental. It is a maturing, evidence-informed capability that aligns with modern trauma care and targets the window where EMS has the greatest impact, before hospital arrival.
Read this NCSL article to learn more and get all the statistics that can help you support your prehospital blood program goals: https://www.ncsl.org/state-legislatures-news/details/one-of-the-most-useful-tools-on-the-ambulance-is-blood