2026 QUESTIONS AND SOLUTIONS GRADED
A+
◉ Newton's first law of motion. Answer: An object at rest will remain at
rest until acted upon by an outside force; an object in motion will remain
in motion and traveling in a straight line unless acted upon by an outside
force
◉ Newton's second law of motion. Answer: The force an object will
exert on another object is equal to the product of the mass of the object
and the acceleration of that object.
F=m/a a=v/t
◉ blunt trauma. Answer: Compression or non penetrating injuries.
MVA and falls account for the majority - aka: deceleration injuries
◉ Front-end impacts. Answer: Occupant slows with the rest of the
vehicle, anterior injuries.
Unrestrained travel down-and-under or up-and-over
,◉ Lateral or T-bone impact. Answer: Occupants on same-side as impact
suffer greatest injuries: whiplash, chest and hip injuries, pneumothorax
◉ Rollover. Answer: Lateral impact below center of gravity
High index of suspicion for unrestrained occupants, especially those
ejected
◉ rear-end impact. Answer: patients head/neck whipped back, then body
is propelled forward while head and neck remain at rest
Generally most survivable crash
Car pushed into traffic or other object - have high index of suspicion
◉ rotational or quarter-panel impacts. Answer: Impact is away from the
center of mass of the vehicle.
Injuries are varied and depend largely on point of impact in relation to
occupant and if they were restrained or not
◉ pedestrian accidents. Answer: Three impacts:
1) vehicle collided with individual, injuries to the lower extremities
2) torso, upper extremities, and head collide with the hood. The force of
impact throws the patient
3) the patient hits the ground and comes to rest
, ◉ falls. Answer: Severity is a result of the height. Falls >3x the height of
the person are a significant MOI
◉ primary blast injury. Answer: Injuries caused by an explosive pressure
wave on the hollow organs of the body.
"Pressure"
◉ secondary blast injury. Answer: Penetrating or non-penetrating
injuries caused by ordinance projectiles or secondary missiles.
"Shrapnel"
◉ tertiary blast injury. Answer: An injury from whole body displacement
(being hurled) and subsequent traumatic impact with environmental
objects (wall, ground, etc...) caused by pressure wave.
"Traumatic impact"
◉ quaternary blast injury. Answer: Caused by other events surrounding
the blast, such as burns from gases or flames, respiratory complications.
◉ Quinary blast injuries. Answer: contamination by chemical,
biological, or radiological material
◉ multisystem trauma. Answer: Trauma that affects more than one body
system.