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If you see a cracked windshield in a MVC... what will the pt represent with? correct answers
Bruised or lacerated head or face. Brain injury, *cervical spine injury (always until proven
otherwise), tracheal injury.
If you see a deformed steering column in a MVC... what will the pt represent with? correct
answers Bruised neck, bruised chest. Sternal or rib fracture, flail chest, myocardial contusion,
*pericardial tamponade, pneumo/hemothorax, aortic tear.
If you see a deformed dashboard in a MVC... what will the pt represent with? correct answers
Bruised abdomen, bruised knee, misplaced kneecap. Ruptured spleen, liver, bowel, diaphragm.
Fractured patella, dislocated knee, *femoral fracture, dislocated hip.
If you see the rear end of the vehicle is damaged in a MVC... what will the pt represent with?
correct answers Secondary anterior injuries, esp if the pt wasn't restrained. "Wiplash" injuries,
*coup contrecoup injury.
Phases of Deceleration correct answers 1) Deceleration of the vehicle, occurs when the vehicle
strikes another object & comes to a stop. 2) Deceleration of occupant, which starts during sudden
braking & continues through the whole crash. 3) Deceleration of internal organs, that consist of
internal organs that continue forward momentum until they're stopped by anatomical restraints.
4) Secondary collisions, which occur when a vehicle occupant is hit by objects moving within
the vehicle (loose objects). 5) Additional impacts, that the vehicle may receive when it is hit by a
second vehicle or is deflected into another.
Velocity correct answers "Speed kills"- causes more damage than mass.
Seat Belt Use correct answers All arguments against seat belt use are unfounded.
,Airbag Injuries correct answers Common injuries include abrasions to the face, chest and arms.
Minor corrosive effects can occur because of the cornstarch on the airbag, and it may irritate the
skin.
Down and Under Pathway correct answers Occupant slides under the steering wheel or the dash.
The knees hit the dashboard, and transmit energy up the leg, to the femur/pelvis. If the feet are
locked in place, it can cause femur fractures.
Up and Over Pathway correct answers Chest hits the steering wheel, head hits the windshield and
anterior portion of the throat hits the top of the steering wheel. Can cause significant head and
neck injuries.
Head on Impact in Motorcycle Crashes correct answers Head on impact- motorcycle strikes
another object and stops its forward motion, while the rider continues forward motion until
stopped by outside force. This causes the rider to go over the handlebars, which causes femur
fractures, and tib fractures.
Angular Impact in Motorcycle Crashes correct answers The motorcycle strikes an object, or
another vehicle at an angel so that the rider sustains direct crushing injuries to the lower
extremity between the object and motorcycle.
Motorcycle Crashes correct answers With any motorcycle crash, the helmet should be removed
carefully if airway management techniques cannot be performed with the helmet in place or the
helmet doesn't fit properly on the riders head.
Pedestrian Injuries correct answers Most pedestrian injuries occur at an intersection, at night.
First, the pedestrian is hit in the lower extremities with the cars bumpers. Second, the pedestrian
is thrown on the top of the car (resulting in brain injuries, and pelvic fractures. Third, the
pedestrian hits the ground or some other object after rolling off the top or the side of the vehicle.
Waddell Triad correct answers Refers to the pattern of automobile pedestrian injuries in children
and people of short stature; 1) bumper hits the pelvis/femur instead of the knees, 2) the chest &
, abdomen hit the grill or low on the hood of the car (sternal & rib fractures), 3) the pt's face hits
the hood, then flies back, and hits the ground.
Fall Severity Factors correct answers 1) Height- determines the velocity of the fall. A fall greater
than 15 feet or 2.5-3 times the pt's height will have a greater injury & higher rate of death. 2)
Position- children usually land on their heads (more mass), and adults tend to try to land on their
feet, cause spinal injuries "Don Juan Syndrome or Lovers Leap". 3) Surface- Snow vs. Concrete.
Blunt Trauma correct answers Refers to injuries in which the tissues are not penetrated by an
external object.
Penetrating Trauma correct answers Involves a disruption of the skin and underlying tissues in a
small, focused area. Most common cause of penetrating trauma- GSW.
Stab Wounds correct answers Severity of the stab wound depends on the anatomic area involved,
depth of penetration, blade length and angle of penetration.
GSW correct answers The most important factor for the seriousness of a gunshot wound is the
type of tissue through which the projectile passes. Tissues of high elasticity like muscle, is better
able to tolerate stretch, rather than the liver.
Entry Wound correct answers Characterized by the effects of initial contact & implosion. *As a
general rule, the entrance wound (usually funnel shaped), is always smaller than the exit wound.
Exit Wound correct answers Occur when the projectile has sufficient energy that is not entirely
dissipated along its trajectory through the body.
Ricochet correct answers *Don't assume that a bullet followed a straight path between the
entrance & exit sights, it may ricochet inside the body, esp off bones, and travel in diff directions.