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Trauma Lab Quiz
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Why are extremity wounds above the elbow or knee more concerning?
More likely to involve significant vascular injury and hemorrhage
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What is the target time for primary and secondary stabilization, packaging, and transport initiation?
Under 10 minutes
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What is a key feature of a Level I trauma center?
Is a regional center prepared to handle all specialty trauma 24/7
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Which of the following is essential for proper hospital care of serious trauma patients?
Immediate availability of skilled surgical intervention
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In the up-and-over pathway of frontal impacts, which injury is most likely?
Facial fractures and cervical spine injury
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A Level III trauma center is typically:
A community hospital with staff training and resources for trauma
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Why do solid organs experience greater damage from cavitation?
They are dense but not resilient and transmit pressure well
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What formula defines kinetic energy?
KE = (mass × velocity²) ÷ 2
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What causes compartment syndrome to develop?
Muscle swelling within fascial compartments that cannot expand
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What was the significance of the Trauma Care Systems Planning and Development Act of 1990?
It provided funding, guidelines, and state leadership for trauma systems
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Under what circumstance should EMS consider removing an impaled object?
If it's interfering with airway management or CPR
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What led to the development of today’s trauma care system?
Investigation of death toll on U.S. highways
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Which of the following is a common cause of blunt trauma?
Falls, motor vehicle collisions, or sports injuries
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Why is field recognition of compartment syndrome difficult?
Signs often develop gradually and may not be evident prehospital
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Which formula correctly represents kinetic energy?
[Mass × velocity²] ÷ 2
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What is the purpose of a trauma registry?
Collect standardized data for system analysis and improvement
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Which tissue type generally limits cavitational damage due to its elasticity and density?
Connective tissue (muscle, tendons, ligaments, skin)
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What is a pressure wave in the context of penetrating trauma?
Outward and forward movement of tissue caused by high-speed projectile impact
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Which of the following injuries are considered pressure wave-related?
Ear drum rupture, bowel injury, lung damage
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What are the components considered in the trauma triage criteria?
MOI, age, vital signs, anatomy of injury, GCS
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Which of the following is an example of a trauma intervention?
Safer vehicle design, Gun safety education, Improved EMS response
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Which of the following best describes quarternary blast injuries?
Any other injuries like burns, toxic exposures, or worsening of chronic illness
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Why are neck wounds particularly dangerous?
Small space contains airway, spinal cord, vessels—risking airway compromise, bleeding, and air embolism
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If intubation is impossible due to facial trauma and airway compromise, what procedure may be indicated?
Percutaneous cricothyrotomy
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What is the primary role of a Level IV trauma center?
Stabilize patients before transport to a higher-level center
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What is a teachable moment in trauma care?
When a near-harm event is used to encourage safer behavior
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In the down-and-under pathway, what injuries may occur?
Knee, femur, hip dislocations; chest and vascular injuries
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Why do some bullets tumble or yaw inside soft tissue?
Their center of mass is farther from the leading edge, especially in rifle rounds
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When assessing gunshot wounds in the field, EMS should:
Describe wounds by appearance and location, avoiding labels like entrance/exit
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Which type of impact happens when the occupant is struck by loose items within the vehicle?
Secondary collision
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For a patient suspended for more than 30 minutes, EMS should consider:
Placing the patient in a seated position with upper body support to slow toxin return
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: What did studies in the 1960s reveal about crash victims?
They experienced injuries and lacked access to organized, definitive care
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What best describes a Level II trauma center?
Has high commitment to trauma care but may transfer most serious cases
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What defines a secondary impact in penetrating trauma?
Bullet striking another object (e.g., glass, clothing) before or during impact with the body
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What is the best way to reduce trauma overall?
Prevention
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In blunt trauma, which type of organ is at greater risk of injury?
Solid organs
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How does body armor reduce penetrating trauma?
It spreads bullet energy across a large area, reducing penetration but possibly causing blunt trauma
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What does true QI avoid doing?
Blaming individual providers
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How many levels of trauma centers are recognized in the current trauma system model?
4
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How much blood volume can pool in the legs during prolonged suspension?
Approximately 20%
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What is resiliency in the context of tissue damage?
Tissue’s connective strength and elasticity influencing damage severity
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Which best describes the primary objective of a Quality Improvement (QI) program within a trauma care system?
Enhancing patient outcomes by continuously evaluating system-wide clinical performance
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Which national organization has identified key MOIs predictive of trauma center need?
Centers for Disease Control and Prevention (CDC)
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What is the goal of the Golden Period in trauma care?
One-hour window from incident to surgery
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A shear injury most often affects:
Organs and tissues at attachment points
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What is the most common type of vehicle impact?
Frontal
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Why do shotgun wadding materials increase risk of infection?
They may penetrate the wound and introduce contaminants
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What causes tissue damage in blunt trauma?
Energy forces transferred without penetration
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A bullet’s profile refers to:
The diameter of the bullet (caliber) facing the target
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Which of the following best describes the zone of injury?
Tissue around the wound that is crushed, torn, and susceptible to infection and slow healing
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What is the goal of Quality Improvement (QI) in trauma systems?
Improving patient care by studying system performance
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