Triage

Transport Priority in Multi-Patient Incidents

How to allocate limited ambulances among triaged patients when several compete for the next transport resource.

Who goes first when ambulances are scarce

Mass-casualty incidents create a transport queue problem: multiple immediate patients, finite ambulances, and hospitals that may also surge. Incident command assigns transport officers who match vehicle capabilities to patient needs—advanced life support for critical airways, multiple ambulances for expectant or minimal patients only when resources allow.1

Among immediate (red) patients, priority often goes to those with reversible life threats who will die without transport—tension pneumothorax after decompression, severe hemorrhage after tourniquet, airway compromise after positioning. The CDC emphasizes abnormal physiology as a trigger for rapid definitive care even outside formal MCI triage.2

Maintaining scene integrity while moving patients

Loading the wrong patient first can strand a more critical victim without monitoring. Triage tags, colored tarps, and geographic staging (red/yellow/green zones) keep priorities visible as crews rotate. Reassess delayed patients each time a unit becomes available—shock and airway failure can develop quietly in the yellow zone.

Communicate expected transport intervals to the triage officer: “next unit in four minutes” changes whether a borderline patient stays for another intervention or moves now. Clear radio traffic prevents duplicate requests and ambulance stacking at one hospital while another has capacity.

Practice this skill

Apply what you read with a hands-on Multi-Patient MCI drill — instant feedback on every scenario.