Ambient oxygen concentrations resulting from use of the Lund University Cardiopulmonary Assist System (LUCAS) device during simulated cardiopulmonary resuscitation.

Introduction: Supplementary oxygen is used routinely during cardiopulmonary resuscitation (CPR). High ambient oxygen levels from ventilation circuits have caused fatal fires and explosions. The Lund University Cardiopulmonary Assist System (LUCAS) device is driven by > 70 l min(-1) oxygen which is also likely to increase ambient oxygen concentrations and cause similar risk of fire and explosion.