NCLEX Triage and Disaster Nursing Questions

Two different triage systems, and knowing which one the stem uses

The most common reason candidates miss disaster items is applying the wrong triage logic. In routine emergency department triage the nurse identifies the client whose condition is most likely to deteriorate and treats them first: chest pain with diaphoresis, respiratory distress, or an unresponsive client outranks a stable fracture. Resources are adequate, so severity drives order.

Mass-casualty triage operates under scarcity. When the number of casualties overwhelms available staff, equipment and transport, the ethical framework shifts from doing everything possible for each individual to achieving the greatest good for the greatest number. Under that framework a client with catastrophic, unsurvivable injuries is tagged expectant so that resources go to clients who will live if treated promptly.

Read the stem for the trigger words: multiple casualties, bus crash, explosion, earthquake, incident command, or the phrase limited resources. Those signal disaster logic. A single client in an emergency department, or a group of assigned clients on a unit, signals ordinary prioritisation using airway, breathing, circulation and stability.

• •Routine triage: sickest and most unstable client first
• •Disaster triage: most salvageable client first
• •Trigger words include mass casualty, incident command and limited resources
• •Unsurvivable injury plus scarce resources equals expectant, not first

START triage and the four colour tags

Simple Triage and Rapid Treatment sorts casualties in under a minute each. The first step is to ask everyone who can walk to move to a designated area; anyone who complies is tagged green as walking wounded. For the remaining casualties the nurse checks respirations, perfusion and mental status in that order, opening the airway and controlling major haemorrhage as the only interventions performed during sorting.

If a casualty is not breathing, the airway is repositioned once. If breathing resumes they are red; if not they are black. A respiratory rate above thirty, absent radial pulse or capillary refill beyond two seconds, or inability to follow simple commands all place the casualty in the red immediate category. Casualties who are breathing adequately, perfusing and following commands but cannot walk are yellow, meaning treatment can be delayed without loss of life or limb.

Applying tags correctly matters on the exam because item writers describe a set of casualties and ask which one to treat, transport or tag first. Red-tagged clients with airway compromise, tension pneumothorax, uncontrolled external haemorrhage or shock take precedence. Massive head injury with fixed pupils and agonal breathing, or full-thickness burns over ninety percent of the body in an austere setting, are the classic expectant descriptions.

Evacuation, incident command and internal disasters

Evacuation order is a reliable exam point: ambulatory clients leave first, then clients requiring wheelchairs or assistance, then bedbound clients who need the most staff per person. Horizontal evacuation to another wing on the same floor is preferred over vertical evacuation down stairwells, because it is faster and safer. In a fire, the RACE sequence applies — rescue anyone in immediate danger, activate the alarm, confine the fire by closing doors, then extinguish or evacuate.

During any declared event the hospital activates its emergency operations plan under an incident command structure. Each nurse reports to a single designated supervisor, works within assigned roles, and does not self-deploy. Questions often test whether you understand that communication flows through the chain of command and that the charge nurse or incident commander assigns tasks rather than staff choosing independently.

Internal disasters — power failure, water contamination, an active shooter, a chemical spill within the facility — differ from external ones in that the facility itself is compromised. Priorities become protecting clients in place, maintaining life support on emergency power outlets, and accounting for every client and staff member. Knowing that red outlets carry emergency generator power is a small but frequently tested detail.

• •Evacuate ambulatory, then assisted, then bedbound clients
• •Prefer horizontal evacuation before vertical
• •RACE: rescue, alarm, confine, extinguish or evacuate
• •Report through incident command; never self-deploy

Decontamination, bioterrorism and personal safety

When casualties arrive contaminated with a chemical agent, decontamination precedes treatment except for immediately life-threatening airway management. Staff don appropriate personal protective equipment before contact, remove the client's clothing, which eliminates a large share of contamination, and irrigate with copious water. Contaminated clients are kept outside the main facility to avoid contaminating the emergency department.

Bioterrorism agents appear periodically in question banks. Anthrax is not transmitted person to person and standard precautions suffice, while smallpox requires airborne and contact precautions with a negative-pressure room. Plague in its pneumonic form requires droplet precautions. Botulism produces descending flaccid paralysis and is not contagious. The exam usually tests precaution type rather than treatment.

Personal safety underpins every disaster answer. A nurse who becomes a casualty helps no one, so options that describe entering an unsecured scene, approaching a violent client without support, or handling contaminated material without protective equipment are always wrong. Scene safety, protective equipment and staying within the assigned role are consistently the defensible choices.

• •Remove clothing and irrigate before bringing contaminated clients inside
• •Smallpox: airborne plus contact; plague: droplet; anthrax: standard
• •Never enter an unsecured scene
• •Protective equipment before client contact, without exception