Highway Safety and Vehicle Extrication Flashcards Preview

EMT Test 5 > Highway Safety and Vehicle Extrication > Flashcards

Flashcards in Highway Safety and Vehicle Extrication Deck (31):

position apparatus to block the scene



look when exiting the vehicle, wear safety vest,



scene safety...



complex and simple vehicle extrication



phases of extrication



eye protection whats best

safety gogles... pg 1046


supplemental air bags

can deploy after the incident


class a fire
class b
class c
class d



simple and complex access.






1057 laminated glass - windshield

glass with plastic in the center of it******


windows - tempered glass everywhere else

shatters into little pieces


Initial Response

• Limited access highways: only primary or first-due units should proceed directly to scene
• On-scene units: park single file in same direction to minimize on-scene congestion


Position Blocking Apparatus

• Create one-and-ahalf
to two lanes of blockage
• Position apparatus at angle; front wheels rotated away from incident
• Leave space immediately next to crash for vehicle extrication units
• Position ambulances, command vehicles, and other units downstream from crash
– Allows safer patient loading and rapid departure from scene


Emergency Highway Safety

• Exit vehicle into safe zone
• Be alert for oncoming traffic
• Place flares or cones to slow traffic and channel away from incident lane
• Night operation: shut off vehicle’s white response lights and headlights


Phases of Extrication

1. Preparing for rescue
2. Sizing up situation
3. Recognizing and managing hazards
4. Stabilizing vehicle prior to entering
5. Gaining access to patient
6. Providing primary patient assessment and rapid trauma exam
7. Disentangling patient
8. Immobilizing and extricating patient from vehicle
9. Providing assessment, care, and transport
10. Terminating rescue


Protective Gear
for EMS Responders

• ANSI reflective safety vest


Protective Gear for EMS Responders

• Helmets
• Eye protection
• Hand protection
• Body protection


Managing Traffic

• Use flares for traffic control


Supplemental Restraint System: Air Bags

• Air bags designed to inflate on impact, dissipate kinetic energy, minimize trauma to body
• Creates “smoke” in vehicle—cornstarch and talcum powder (and sometimes sodium hydroxide)


Electrical Hazards

• High voltage lines common
• Assume entire area around exposed wire dangerous—conductors may have touched and energized
• Ordinary protective clothing gives no protection against electrocution


Vehicle Fires

• Small fires: 15- or 20-pound class
A:B:C dry chemical fire extinguisher extinguishes almost
anything burning
• Fire under hood: do not attempt
extinguishment unless hood fully open
• Fire in passenger compartment: apply extinguisher sparingly until occupants can be freed
• Fire in trunk: apply same principles as engine compartment fire


Stabilizing a Vehicle

• Vehicle on wheels
– Turn off engine; step-chock three sides
• Vehicle on side
– Stabilize with ropes, cribbing, or stabilizer bars
• Vehicle on roof
– Utilize 4x4 wood blocks to build crib box


Gaining Access

• Simple access
– Check if door or window can be opened
– Try before you pry
• Complex access
– Utilize tools and equipment
– Break glass in side or rear window as far from passengers as possible



• Gain access by disposing of doors and roof
– Makes vehicle interior accessible
– Creates large exit-way
– Provides fresh air and helps cool heated patient

• Disentangle occupants by displacing front end
• Easily accomplished with heavy duty jacks and hacksaws
• Do not cut steering column or airbag wiring; may cause unexpected firing


Chapter Review Highway Safety

• Highway operations are a high-risk scene.
• Scene size-up is key to determine how many patients.
• Protect yourself from traffic, un-deployed airbags, loaded bumpers and sharp metal.


Chapter Review Highway Safety

• Ensure scene safety.
• Try simple means to gain access first.
• Protect your patient during the extrication process.


Remember Highway Safety

• Highway response is a significant safety hazard for EMTs. Specific safety planning
and procedures must be utilized to keep responders safe.
• Responding units should evaluate need for further units, institute “blocking” to
protect work area, and always exit apparatus into safe zone.


Remember Highway Safety

• Use protective equipment and warning devices.
• Vehicle extrication often requires specialized training and resources. Know local resources and procedure for activating those resources.


Remember Highway Safety

• Determine extrication resources needed and patient extrication priority through thorough scene size-up.
• Extrication can pose a variety of threats. Evaluate the scene carefully and employ safety procedures.


Remember Highway Safety

• Gaining access to patients frequently requires mechanical and technological assistance. Always start simply and escalate only when simple measures fail.