TRIAGE

Published on 10/03/2015 by admin

Filed under Critical Care Medicine

Last modified 10/03/2015

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CHAPTER 9 TRIAGE

Triage is the process of prioritizing patient care based on patient need and available resources. In daily practice, triage decisions link individual patients with resources appropriate for their injuries, with the goal being “the greatest good for the patient.” In the setting of ubiquitous resources, these are “life or life” decisions. Triage occurs at each level along the pathway of care, from prehospital and emergency room; through the operating room, intensive care unit, and ward; to discharge and rehabilitation.

In a mass casualty incident, the needs of a population of patients exceed available resources. Triage decisions in this situation work to promote “the greatest good for the greatest number.” With scare resources, these are tough decisions because the paradigm of care shifts from bringing all available resources to bear on the individual patient to managing resources for the greatest effect on a population of patients. Triage is not a static process—it is a dynamic sequence of decisions that change depending on the nature of the patient, resources, and event situation. Triage in a mass casualty event works to identify and separate the most critically injured patients from the mass of less injured casualties. As such, mass casualty triage systems must be error tolerant through repetitive cycles of reevaluation along the care pathway.

A common link between effective daily and mass casualty triage is situational awareness of system resources for daily and surge capacity. Many systems experience “chronic surge capacity” challenges in meeting the regular health care needs of their populations.

FIELD TRIAGE

Field triage identifies severely injured trauma patients at the point of injury in the “field” and triggers a decision to transport severely injured patients to a hospital that has resources commensurate with patient needs. A common field triage decision scheme assesses the injured patient in four steps, each step linked to a determination about patient need for a level of care at a trauma center. The field triage decision scheme presented here (Figure 1), originally developed by the American College of Surgeons Committee on Trauma, was revised through an evidence-based review by an expert panel representing emergency medical services, emergency medicine, trauma surgery, and public health. The panel was convened by the Centers for Disease Control and Prevention (CDC), with support from the National Highway Traffic Safety Administration (NHTSA). Its contents are those of the expert panel and do not necessarily represent the official views of CDC and NHTSA.

Step 1 assesses physiology; step 2, anatomy of the injury; step 3, mechanism of injury and high-energy impact; and step 4, special patient or system considerations. Effective implementation of a triage decision scheme is enhanced by simplicity within relevant steps. In other words, scheme complexity harms good triage.

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