Vehicle Extrication Flashcards
What are the 3 collisions in MVC’s
machine, body,organ
What are the 5 common forms of MVC’s
head-on, t-bone, rear-impact, rotational, rollover
Often passenger side airbags cause spidering on the windshield as part of normal deployment
True
Front offset collision
one side impacted head on, not all of the crumple zone is used resulting in rotational force
What type of collision results in higher degree of entrapment
T-bone
Rear impact collisions may result in what injury
Whiplash
Rollover collisions are the most difficult to assess
True
Who is in charge of overall scene safety
The officer
Sheet metal that provides lateral strength and protects against front end impacts
firewall
What are the 3 types of frames
uni-body, full frame, space frame
What works in conjunction with airbags?
Seat belt pre-tensioning devices
Air bags are considered supplementary, seatbelts are considered primary
true
What is the 10-10-20 rule
10” from side
10” from drivers side
20” from passenger side airbags
What is the average deployment zone of airbags
10”
What does ROPS stand for
Roll Over Protection System
Never intentionally cut RED, ORANGE or YELLOW wire or wire loom
and disconnect the battery
What tool should you use to strip and rip a vehicle
screwdriver
When are rescue 42 struts used
When a vehicle is on its side or roof, used to stabilize a vehicle
What is the most common available tool for vehicle stabilization
wood blocks
softwoods are the most popular choice for cribbing
pine/spruce
16-24” is the range of length for cribbing, what is the most common length
18”
Only the ends of cribbing can be painted
true
To avoid creating a tripping hazard ensure the outside edges of the box crib are even with the side of the vehicle
true
For a 2x2 crosstie layout with a 4”x4” dimensional lumber the crib capacity is
24,000 lbs (12 tons)
For a 3x3 with 4”by4” dimensional lumber the crib capacity is
54,000 lbs (27 tons)
Rescue 42’s can support how much weight
18,000 pounds
Rescue 42’s are non-conductive to electricity and impact resistant
true
What are the three phases of stabilization
scene stabilization, vehicle stabilization, patient stabilization
What should you have when you do your outer circle survey
20 lb fire extinguisher
The outer circle survey is generally
5-10 meters minimum
It should take how long for a crew to evaluate the vehicle situation
30 seconds
Stabilization should be checked
Every 3-5 minutes or whenever metal is displaced
Removing air from low profile or run-flat tires may not give you an advantage as the deflation depth will be minimal
true
The average time to stabilize a vehicle should fall within two minutes
true
Which terminal is disconnected first
black/ground
A good rule of thumb for pt access in vehicle collisions is to use the largest opening that is farthest from the pt
this will be the rear window or hatch
If c-spine is needed the window closest to the pt should be opened
true
Action circle
a “clear zone” established in a extrication incident that is 10-15 ft in all directions
