Once paramedics arrive on-scene, they will take a pack from the ambulance containing all necessary supplies to begin resuscitation. These packs are already present on each ambulance in Mecklenburg County and contain an EZ-IO drill, IO needles, ACLS medications, and KING LTD airway device. For the purposes of this study, peripheral IV start kits will be added to these resuscitation packs at the start of study implementation.