START vs MASS Triage: Which System Should Your Department Use
In the chaos of a mass-casualty incident, making rapid, accurate decisions about patient care isn’t just critical, it’s the difference between life and death. First responders need a reliable, easy-to-implement system to quickly categorize victims and allocate scarce resources. Without a clear protocol, decision fatigue can set in, delaying vital aid to those who need it most.
Two prominent triage systems, START (Simple Triage and Rapid Treatment) and MASS (Move, Assess, Sort, Send), aim to bring order to this chaos. While both serve the same fundamental purpose—prioritizing patients—they approach the task with distinct methodologies. For fire-rescue, EMS, and disaster preparedness teams, understanding these differences is key to choosing the right tool for your operational environment.
At START Triage, we’ve seen firsthand how a well-understood, streamlined system empowers responders. Our focus is on providing an organized, memorable method for mass casualty incident management. As we explain in our detailed guide on the START Triage Algorithm: The 60-Second Victim Assessment, our system ensures responders can triage each victim in 60 seconds or less.
What Triage System is Recommended for Mass Casualty Incidents?
Many emergency response agencies recommend and utilize the START triage system for mass casualty incidents due to its simplicity and speed. It allows first responders with basic medical training to efficiently categorize a large number of victims into four color-coded groups based on their immediate treatment needs.
When every second counts, a straightforward system is invaluable. The START system was developed in California in 1983, a joint effort between Hoag Memorial Hospital Presbyterian and the Newport Beach Fire Department. It’s designed to be quick and easy to remember, even under intense pressure. This system is widely adopted across the United States, including by numerous California fire departments, and has proven its effectiveness in major incidents like the 9/11 World Trade Center bombing and the 1995 Oklahoma City bombing.
“The objective of triage is to do the greatest good for the greatest number of casualties. This requires a rapid, systematic approach to classify victims according to the severity of their injuries and the likelihood of survival with immediate care.”
What is the Most Common Triage System, and How Does it Work?
The START triage system is arguably the most common and widely taught triage method globally. It works by rapidly assessing four physiological parameters: Respirations, Perfusion, and Mental Status (RPM). These assessments quickly assign a color-coded priority for treatment and transport.
Responders typically move through the incident site, using simple commands and observations. The process is clear-cut: first, direct ambulatory patients to a collection point. Those who can’t walk are then assessed using the RPM criteria. This organized flow ensures that the most critically injured are identified quickly. You need a system that is easy to learn, easy to remember, and easy to use. The START system delivers on these promises, minimizing decision fatigue during high-stress situations. Our training materials are developed for real-world responder scenarios, making the methodology practical and applicable.
- Respirations: Is the patient breathing? If not, reposition the airway. If they start breathing, tag them RED. If they don’t, tag them BLACK. If they are breathing, check their rate. If over 30 breaths per minute, tag RED. If under 30, proceed to perfusion.
- Perfusion: Check for a radial pulse or capillary refill. If no radial pulse, or capillary refill is over 2 seconds, tag RED. If perfusion is adequate, proceed to mental status.
- Mental Status: Can the patient follow simple commands? If they can’t, tag RED. If they can, tag YELLOW.
- Minor: Ambulatory patients are tagged GREEN.
MASS Triage, while also systematic, often involves a slightly different initial approach, sometimes emphasizing immediate movement of patients out of hazardous zones before detailed individual assessment. This system also aims for rapid categorization but might integrate more organizational or command-level decision-making early in the process. MASS Triage often includes categories like “Immediate,” “Delayed,” “Minimal,” and “Expectant,” similar to START’s Red, Yellow, Green, and Black tags, respectively. However, the specific assessment criteria can vary.
What to Look For: Triage Tag Colors Meaning in Emergency
Both START and MASS triage systems utilize a standardized color-coding scheme to classify victims, making it instantly recognizable to any trained responder. Understanding these colors is fundamental to mass casualty incident management.
- Red (Immediate): These patients have life-threatening injuries but have a high probability of survival with rapid intervention. Examples include uncontrolled bleeding, airway compromise, or severe shock. They need immediate medical attention.
- Yellow (Delayed): Patients in this category have serious injuries but their condition isn’t immediately life-threatening. They can wait for a few hours without significant risk of deterioration. This might include stable fractures, moderate burns, or spinal injuries without severe compromise.
- Green (Minimal): Also known as “walking wounded,” these individuals have minor injuries that can be managed later, or they can even self-evacuate. Abrasions, minor cuts, or sprains fall into this group.
- Black (Expectant/Deceased): These are either deceased patients or those with catastrophic injuries unlikely to survive given the available resources and the severity of their condition. Resources are not allocated to this group when others can be saved.
As we detail in our post, Understanding START Triage Color Coding: Red, Yellow, Green, Black, these universally recognized colors streamline communication and resource deployment during highly stressful situations, helping responders quickly identify the most critically injured.
When Should a Patient Be Tagged Expectant Under SALT Triage?
While the START system is widely used, other systems like SALT (Sort, Assess, Life-saving Interventions, Treatment/Transport) also exist. Under SALT triage, a patient should be tagged “Expectant” (equivalent to START’s Black) if they are clearly deceased or have injuries so severe that survival is highly improbable even with definitive medical care, and resources are limited.
This decision is never easy, but it is a grim reality in mass casualty incidents where resources are stretched thin. For example, a patient with massive head trauma, extensive burns over most of their body, or an obvious traumatic arrest with no response to basic interventions would likely be classified as expectant. The goal is to maximize survival for the greatest number, meaning resources are prioritized for those with a higher chance of recovery. While the decision-making criteria might vary slightly between systems, the underlying principle of prioritizing the ‘greatest good for the greatest number’ remains constant.
“In a mass casualty event, where resources are finite, triage decisions must often be made quickly and decisively to save the maximum number of lives. This sometimes means identifying individuals whose injuries are beyond the scope of available immediate care, classifying them as expectant.”
This principle extends to pediatric patients as well. While START provides a robust framework, assessing children requires a slightly different approach due to their unique physiology. That’s why we also offer JumpSTART Pediatric Triage: Assessing Children in Mass Casualty, a tailored system for younger victims.
Practical Tips for Implementing a Triage System
Choosing and implementing a triage system for your department is a significant undertaking that requires thorough planning and ongoing commitment. Here are some practical tips to ensure your team is ready when an emergency strikes:
- Regular Training and Drills: Don’t just train once. Conduct frequent drills and refresher courses. Practice makes perfect, and muscle memory is crucial under pressure. In our experience, consistent application of the START system allows responders to reduce decision fatigue and act confidently.
- Standardized Equipment: Ensure all responders have access to standardized triage tags, pens, and personal protective equipment. Consistency helps streamline the process.
- Integration with Incident Command: A triage system is only one part of a larger emergency response. It must integrate seamlessly with your existing incident command structure and communication protocols.
- Scenario-Based Learning: Go beyond classroom theory. Use realistic scenarios, including different types of mass casualty incidents like active shooters, natural disasters, or industrial accidents, to train responders.
- Review and Debrief: After every drill or real-world incident, conduct a thorough debrief. What worked well? What could be improved? Use these lessons to refine your protocols and training.
- Certify Your Instructors: To maintain high standards, ensure your training staff are certified. You can learn more about How to Become a Certified START Triage Instructor through our programs.
For organizations, investing in robust triage training like START is a commitment to public safety and responder efficacy. You’re not just buying materials; you’re building a culture of preparedness. Andres Price, a long-time emergency services educator, emphasizes that “the true value of a triage system isn’t in its complexity, but in its ability to be universally understood and applied quickly by every responder on scene.”
Ultimately, whether your department leans towards START or integrates aspects of other systems, the goal remains the same: to save lives. Both START and MASS offer a structured approach to what can otherwise be an overwhelming situation. They empower first responders to make the best possible decisions with limited resources. By adopting and rigorously training with a recognized triage system, you’re not just preparing for the worst; you’re equipping your team to perform at their best when it matters most. Explore our comprehensive START Certification Programs: Getting Your Organization Ready to ensure your department is fully prepared for any mass casualty incident.
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