Field Manual (FM) 4-25.11: First Aid Army Board Practice Exam

The key idea is the time targets that go with each medical evacuation category. Urgent MEDEVAC is defined to move a patient within 2 hours of notification because their condition is life-threatening or could rapidly deteriorate without prompt treatment. That tight window is what makes this category the fastest and the one that applies to the most critical cases.

The other categories have longer target times: four hours for Priority, which covers serious but not immediately life-threatening injuries; 24 hours for Routine, used for less urgent cases; and Standby within 12 hours, which relates to readiness and planning rather than an immediate, life-threatening time frame.

So, the category with a target of within 2 hours is the urgent category.