Prehospital Academy Lesson 10.3
This lesson expands upon the vital lecture concerning the primary assessment and subsequent transport decision in EMS. For EMTs, the primary assessment is the rapid, systematic process of identifying and correcting immediate life threats. It dictates the urgency of transport and guides initial interventions, ensuring critical patients receive definitive care as quickly as possible.
The Primary Assessment: Identifying Life Threats
The primary assessment is a focused, hands-on evaluation designed to rapidly detect and manage conditions that are immediately life-threatening. It's often referred to as the "ABCDEs" or "CAB" approach, depending on the patient's presentation and the specific protocol:
A - Airway: Is the airway open and patent? Is the patient speaking clearly? Is there any obstruction?
B - Breathing: Is the patient breathing adequately? What is the rate, rhythm, and quality of respirations? Are there any abnormal breath sounds?
C - Circulation: Is there a pulse? What is its rate and quality? Is there any uncontrolled bleeding? What is the skin color, temperature, and condition (CTC)?
D - Disability (Neurological Status): A quick assessment of the patient's level of consciousness using the AVPU scale (Alert, Verbal, Pain, Unresponsive).
E - Exposure/Environment: Expose injuries as needed, but always ensure patient modesty and maintain body temperature.
The primary assessment should be completed within a very short timeframe, typically under two minutes for most patients, to allow for rapid decision-making.
Index of Suspicion: Guiding Your Assessment
Your "index of suspicion" is the awareness that unseen injuries or medical conditions may exist based on the mechanism of injury (MOI) or nature of illness (NOI). For example:
A significant fall may suggest internal injuries or spinal trauma, even if outwardly the patient appears fine.
A patient complaining of "indigestion" might be experiencing a myocardial infarction.
The primary assessment is not intended to be diagnostic. Rather, it is designed to help you determine how critical the patient is and what immediate life-saving interventions are required. This level of suspicion directly influences your transport decision.
Transport Decision: Load and Go vs. Stay and Play
A critical decision following the primary assessment is whether the patient requires immediate transport to a definitive care facility ("load and go") or if more time can be spent on scene for further assessment and interventions ("stay and play").
Load and Go: Patients with immediate life threats identified during the primary assessment (e.g., uncontrolled hemorrhage, unstable airway, severe shock, altered mental status with a traumatic brain injury) generally fall into this category. Rapid transport to the most appropriate facility is essential.
Stay and Play: Patients without immediate life threats, or those who may benefit from interventions on scene (e.g., splinting an isolated extremity fracture, managing a simple diabetic emergency) can have more time dedicated to secondary assessment and on-scene treatment.
The ultimate goal is always to provide the best possible outcome for the patient, which often means getting them to the right hospital quickly if their condition is critical.
"CUPSS" Acronym for Transport Decisions
The "CUPSS" acronym is a useful tool to help guide transport decisions, particularly in trauma and critical medical patients:
C - Critical: The patient has an immediate life threat requiring rapid transport.
U - Unstable: The patient's condition is unstable and could rapidly deteriorate, necessitating prompt transport.
P - Potentially Unstable: The patient currently appears stable but has a significant MOI or NOI that could lead to rapid deterioration. Close monitoring and considering faster transport are warranted.
S - Stable: The patient's condition is stable, and there are no immediate threats. More time can be spent on scene for a thorough secondary assessment and non-critical interventions.
S - Surgical/Specialty: The patient requires a specific type of surgical or specialty intervention that can only be provided at a particular facility (e.g., trauma center, stroke center, burn center).
Critical Thinking Questions
You arrive on scene to find an unresponsive patient. During your primary assessment, you note an obstructed airway. What is your immediate priority, and how does this affect the sequence of your remaining primary assessment steps?
A patient involved in a high-speed motor vehicle collision appears alert and has no obvious injuries. However, based on the significant mechanism of injury, what is your index of suspicion, and how should this influence your transport decision?
You are treating a patient with a severe extremity hemorrhage. You've applied a tourniquet and controlled the bleeding. While the patient is now stable, what "CUPSS" category would they fall under, and why is rapid transport still a high priority?
Describe a scenario where a "stay and play" approach might be appropriate for an EMT, justifying your decision based on the patient's presentation and the absence of immediate life threats.
How do local EMS protocols and medical control directives influence an EMT's transport decision, particularly when faced with a patient who is "potentially unstable"?