Which term describes priority types that EMS uses for patient triage?

• A. Routine, urgent, critical.
• B. Non-urgent, urgent, emergency.
• C. Low priority, medium priority, high priority.
• D. Stable, potentially unstable, unstable.

Answer: (D)

In EMS triage, priority types describe how a patient’s condition is likely to evolve and how urgently they need care. The three terms—stable, potentially unstable, and unstable—capture that progression. A stable patient currently has vital signs and overall condition that aren’t urging immediate life-saving action. A potentially unstable patient could deteriorate quickly with time or minor changes, so they require close monitoring and prompt attention. An unstable patient is in a life-threatening state needing immediate intervention to save life. This three-level framework helps responders quickly assign transport priority and allocate resources appropriately in the field.

Other phrasing like routine/urgent/critical or low/medium/high priority describes different schemas or general severity but doesn’t align with the specific triage scale of stability levels used in EMS field triage.