Triage for a Mass Casualty event

by Cathy Parkes December 28, 2020 Updated: February 16, 2024

Triage for a Mass Casualty event: Class I (red tag): Immediate threat to life. Class II (yellow tag): Major injury. Class III (green tag): Minor injury. Class IV (black tag): Patient is expected, allowed to die.

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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