TEST PAPER PRACTICE QUESTIONS AND
COMPREHENSIVE SOLUTIONS REVIEW
◉ If you see a deformed steering column in a MVC... what will the pt
represent with? Answer: 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? Answer: 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? Answer: Secondary anterior injuries, esp
if the pt wasn't restrained. "Wiplash" injuries, *coup contrecoup
injury.
◉ Phases of Deceleration Answer: 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 Answer: "Speed kills"- causes more damage than mass.
◉ Seat Belt Use Answer: All arguments against seat belt use are
unfounded.
◉ Airbag Injuries Answer: 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 Answer: 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 Answer: 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 Answer: 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 Answer: 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 Answer: 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 Answer: 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 Answer: 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.