The Collapsed Parking Structure: Triage Under Scarce Transport
A magnitude 6.8 earthquake strikes a dense urban district at 04:40. You are the first-arriving EMS supervisor at a six-level parking garage that has pancaked on its eastern half; a mixed-use building beside it has partially failed. Initial walk-through finds roughly 40 casualties in the accessible zone. Specific patients include: a 34-year-old woman with a crushed pelvis, conscious, radial pulse present but thready, breathing 32/min; a 60-year-old man with bilateral femur fractures, alert, breathing 22/min, capillary refill 3 seconds; a 7-year-old with a scalp laceration, crying, walking; an unresponsive adult with agonal respirations and a faint carotid pulse; and an older adult with a rigid abdomen and absent radial pulse who is moaning. Two ground ambulances and one helicopter are available; the nearest trauma center is 18 minutes by road, the regional burn center 55 minutes away. A secondary collapse warning has been issued for the eastern half.
1. Using a mass-casualty triage framework, assign each of the five named patients to a category and justify your reasoning. Which single patient should receive the first available transport resource, and why?
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Apply a standard MCI sort (e.g., START or SALT) but reason about physiology rather than memorized labels:
- Crushed pelvis, RR 32, thready radial pulse: Respirations above the adult threshold and poor perfusion put her in Immediate (Red). She is salvageable with hemorrhage control and rapid transport, and she is the highest-yield use of the first ground unit.
- Bilateral femur fractures, RR 22, delayed cap refill: Alert, breathing within range, but perfusion delayed - Immediate (Red) by physiology, though lower acuity than the pelvic crush. Femur fractures can bleed 1–2 L each; splinting and tranexamic acid are field priorities.
- 7-year-old, walking, crying: Minor/Delayed (Green). Reassure, dress the laceration, and reassign to a walking-wounded collection point. Do not consume a transport resource now.
- Unresponsive, agonal respirations, faint carotid pulse: Under START this is Expectant/Deceased (Black) unless a simple airway maneuver restores breathing. Agonal breathing with a barely palpable pulse in a scene with crush hazard and limited resources is not a transport priority. Document and reassign if resources later permit.
- Rigid abdomen, absent radial pulse, moaning: Immediate (Red) but physiologically decompensating - likely hemorrhagic shock from an abdominal injury. He may be the sickest, but the pelvic-crush patient is more likely to survive the 18-minute transport.
First transport: the pelvic-crush woman to the trauma center. Rationale: compressible/packable hemorrhage, reversible shock, short transport, and high survival yield. The abdominal patient goes second (or simultaneous if the helicopter can be committed). The expectant patient is not transported while reds remain.
2. The secondary-collapse warning forces you to relocate the treatment area. What operational decisions do you make in the next 10 minutes, and how do you prevent the triage you just performed from unraveling?
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Key moves:
- Establish command and a single casualty collection point (CCP) uphill and upwind of the collapse zone, outside the predicted debris field, with one entrance and one exit.
- Tag-and-move discipline: all patients get a triage tag before movement; the walking wounded self-evacuate to a Green holding area under a single responder or trusted bystander.
- Do not re-triage from scratch - reassign only if condition changes; re-sorting everyone wastes the scarce minutes and risks misclassification under stress.
- Request additional resources through the incident command structure (additional ALS, rescue task forces, a medical branch director) and notify receiving facilities of the patient mix and ETA.
- Documentation: a simple tally sheet (category, name/description, destination) so patients are not lost and the after-action review has data.
- Safety: no responder enters the eastern half until structural assessment clears it; rescue and medical operations are separated so treatment is not disrupted by ongoing extrication. The principle: relocation is a logistics problem, not a re-triage problem.