West Coast EMT Block 4 Review Exam With Verified Questions and Answers
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Course
West coast Emt
Institution
West Coast Emt
West Coast EMT Block 4 Review Exam With
Verified Questions and Answers
1.Kinetic energy is a calculation of:
A.weight and size.
B.weight and speed.
C.mass and weight.
D.speed and force. - answerB.weight and speed.
Rationale: Kinetic energy is a calculation of mass (weight) and velocity (spee...
West Coast EMT Block 4 Review Exam With
Verified Questions and Answers
1.Kinetic energy is a calculation of:
A.weight and size.
B.weight and speed.
C.mass and weight.
D.speed and force. - answer✔✔B.weight and speed.
Rationale: Kinetic energy is a calculation of mass (weight) and velocity (speed). Energy cannot
be destroyed, only converted. (1/2 mv^2)
Force is a product of mass * acceleration
2.A 20-year-old man has major open facial injuries after his vehicle struck a tree head-on. Which
of the following findings within the car would MOST likely explain his injury pattern?
A.Deployed airbag
B.Bent steering wheel
C.Nonintact windshield
Rationale: The mechanism of injury and condition of the vehicle's interior suggest likely areas of
injury. Head and neck injuries are likely to result when the head and face impact the windshield.
deployed airbags typically result in abrasions of the face, head, and arms // bent steering wheel
tyoically indicates the presence of chest injuries // crushed instrument panel typically indictaes
the presence of leg and hip injuries
3.Which of the following would MOST likely result from the third collision in the "three-
collision" effect that occurs during a high-speed, frontal impact motor vehicle crash?
A.Extensive damage to the automobile
B.Flail chest and lower extremity fractures
C.Massive external trauma with severe bleeding
D.Aortic rupture or compression injury to the brain - answer✔✔D.Aortic rupture or compression
injury to the brain
Rationale: During the third collision, the body's internal organs collide with the inside of the
body. These injuries are usually not as obvious, but are often the most life-threatening. Injuries
that may result from this include internal injuries of the brain (compression injuries) and aortic
tears, resulting in massive internal bleeding.
A would occur in first collision (vehicle vs other object); B & C would occur in second collision
(person vs vehicle)
4.A young male experienced severe blunt chest trauma when his passenger car struck another
vehicle head-on. During your inspection of the interior of his vehicle, you would MOST likely
find:
A.deployed airbags.
B.steering wheel deformity.
C.starring of the windshield.
Rationale: Blunt chest injuries during a motor vehicle crash typically occur when the chest
impacts the steering wheel. Therefore, your inspection of the vehicle's interior will most likely
reveal a deformed steering wheel.
5.An unrestrained driver collided with a bridge pillar. Upon inspection of the interior of his
vehicle, you note that the lower dashboard is crushed. During your assessment of the patient, you
will MOST likely encounter:
A.trauma to the pelvis.
B.blunt abdominal trauma.
C.a severe closed head injury.
D.penetrating thoracic trauma. - answer✔✔A.trauma to the pelvis.
Rationale: Impact points are often obvious from a quick inspection of the vehicle's interior.
During a frontal collision, the unrestrained occupant's knees often impact the lower dashboard.
With this type of impact, energy is transferred from the knees to the femurs, and then to the
pelvis or hip.
abdominal trauma comes from striking steering wheel; severe closed head injury comes from
striking windshield; penetarting thoracic trauma caused by flying debris, collisions w parts of
vehicle, or other movable objects
6.Whiplash injuries are MOST common following _________ impacts.
A.rear-end
B.rollover
C.frontal
D.lateral - answer✔✔A.rear-end
Rationale: Whiplash injuries of the neck are a common occurrence following rear-end collisions.
As the vehicle is suddenly thrust forward, the occupant's head is thrust backward. Properly
positioned headrests can minimize the severity of whiplash injuries.
rollover typically causes LT injuries; frontal causes chest, head, abd, extremity injuries; lateral
should suspect lateral chest and abd injuries and pelvic injuries
7.Death from a rollover motor vehicle crash is MOST often secondary to:
A.crushing injuries.
B.airbag-related trauma.
C.multiple collisions to the interior of the car.
D.ejection of the patient from the motor vehicle. - answer✔✔D.ejection of the patient from the
motor vehicle.
Rationale: Rollover crashes are the most unpredictable with regard to injuries sustained by the
patient. An unrestrained passenger may have struck multiple points within the vehicle. However,
the most life-threatening event in a rollover is ejection or partial ejection of the patient from the
vehicle.
crushing injuries occu during ejection or partial ejections; airbag trauma significantly reduces
death; multiple collisions w interior of car makes prediction of injury patterns difficult, but is not
the most LT event
8.Severe abrasion injuries can occur when motorcycle riders are slowed after a collision by road
drag. Road drag is most often associated with which type of motorcycle impact?
A.Head-on collision
B.Angular collision
C.Ejection
D.Controlled crash - answer✔✔C.Ejection
Rationale: During an ejection, the rider will travel at high speed until stopped by a stationary
object, another vehicle, or road drag. Severe abrasion injuries (road rash) down to bone can occur
with drag.
9.When assessing a stab wound, it is important for the EMT to remember that:
A.stabbings to an extremity are rarely associated with an exit wound.
B.the majority of the internal trauma will be near the path of the knife.
C.most stabbings are unintentional and cause less severe internal injury.
D.more internal damage may be present than the external wound suggests. - answer✔✔D.more
internal damage may be present than the external wound suggests.
Rationale: With low-velocity penetrations, injuries are caused by sharp edges of the object
moving through the body and are therefore close to the object's path. Weapons such as knives,
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