Triage for a Mass Casualty event:
Class I (red tag): Immediate threat to life. Ex: hemorrhagic wound, pneumothorax, major burn.
Class II (yellow tag): Major injury that requires prompt treatment within 2 hrs. Ex: bone fracture.
Class III (green tag): Minor injury that does not require treatment within 2 hrs. Ex: laceration, sprain.
Class IV (black tag): Patient is expected and allowed to die. Ex: Penetrating head wound, chest crush injury.
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