MOI Pre-Test - WordPress.com

Mechanism of Injury- PRE-TEST
Multiple Choice
Identify the choice that best completes the statement or answers the question.
____
1. The leading cause of death in children under 9 years of age is injuries sustained from:
a. Falls
b. Motor vehicle crashes
c. Pedestrian injuries
d. Bicycle crashes
____
2. A body in motion will stay in motion until acted on by some external force. This statement best
defines:
a. Conservation of energy
b. Newton’s first law of motion
c. Newton’s laws on force
d. Principles of kinetic energy
____
3. If a vehicle that is traveling 60 miles per hour comes to a sudden stop, the occupants of that vehicle
continue traveling at 60 miles per hour until they strike an object inside the vehicle (e.g., dashboard,
seat belt). This statement illustrates the concept known as:
a. Conservation of energy
b. Newton’s first law of motion
c. Newton’s laws on force
d. Principles of kinetic energy
____
4. Which of the following statements is correct when comparing penetrating and blunt trauma?
a. Blunt trauma does not have the same force as penetrating trauma.
b. Both blunt trauma and penetrating trauma can cause cavitation.
c. Penetrating trauma causes more severe tissue damage than blunt trauma.
d. Because blunt trauma does not penetrate the skin, it does not cause cavitation.
____
5. The statement that an object in motion or at rest remains in that state until acted on by an outside
force reflects:
a. The conservation of energy law
b. The kinetic energy dissipation law
c. Newton’s first law of motion
d. Newton’s second law of motion
____
6. A car strikes a tree at 50 miles per hour. Newton’s first law of motion states that the:
a. Body inside will travel at 50 miles an hour until acted on by an outside force
b. Energy of the body inside the vehicle cannot be destroyed, but the form can be
changed
c. Force on the body equals the mass times acceleration
d. Kinetic energy of the body will be determined primarily by the velocity
____
7. The process of predicting injury patterns based on certain mechanisms is known as:
a. Cinematics
b. Kinematics
c. Kinesthematics
d. Traumatics
____
8. In a crash scenario, you would expect injury to the aorta to be located at the:
a. Base of the aortic arch
b. Beginning of the descending abdominal aorta
c. Origin of the aorta from the heart
d. Point of attachment to the ligamentum arteriosum
____
9. If the patient in a crash scenario has taken a deep breath before striking his chest against the steering
wheel, you would expect:
a. Cardiac tamponade
b. Flail chest
c. Hemothorax
d. Pneumothorax
____ 10. In a motor vehicle crash, a frontal or head-on impact can result in a down-and-under injury pathway.
This means:
a. The impact is at an angle with less trauma to the victim
b. The victim moves downward in the seat and strikes the dashboard
c. The victim moves laterally and strikes the window and door
d. The victim moves upward and ultimately strikes the windshield
____ 11. During a lateral impact, if the damaged vehicle moves away from the impact:
a. The victim absorbs most of the impact from the collision
b. The victim sustains a down-and-under injury pathway
c. The victim sustains an up-and-over injury pathway
d. The victim sustains torsion to the head, neck, and torso
____ 12. Rollover collisions produce injuries that are:
a. Most often limited to the head and spine
b. Not affected by the speed of travel
c. Unpredictable and difficult to categorize
d. Usually limited to one body system
____ 13. Ejection from vehicles:
a. Creates a sixfold increase for the risk of death
b. Decreases the risk for spinal trauma but increases the risk for head trauma
c. Is becoming more common as fewer people are wearing seat belts
d. Never occurs when occupants are restrained
____ 14. An improperly worn lap belt can cause injury to what area of the spine during frontal impact?
a. C2-C5
b. L3-L4
c. T12-L2
d. T2-T5
____ 15. In frontal collisions, the lap belt:
a. Allows room for the torso to reach the dashboard
b. Allows the body to move with the vehicle
c. Keeps the torso from moving forward
d. Prevents the body from moving backward
Mechanism of Injury- PRE-TEST
Answer Section
MULTIPLE CHOICE
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