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22 Cards in this Set
- Front
- Back
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Blunt trauma
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An impact on the body by objects that cause injury without penetrating soft tissues or internal organs and cavities
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Cavitation
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A phenomenon in which speed causes a bullet to generate pressure waves, which caused damage distant from the bullet's path
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Coup-countercoup brain injury
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A brain injury that occurs when force is applied to the head and energy transmission through brain tissue causes injury on the opposite side of the original impact
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Deceleration
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The slowing of an object
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Index of suspicion
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Awareness that unseen life-threatening injuries may exist when determining the mechanism of injury
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Kinetic energy
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The energy of a moving object
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Mechanism of injury
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The forces or energy transmission plights the body that cause injury
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Multi-system trauma patient
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A patient who experienced trauma that affects more than one body system
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Penetrating trauma
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Injury caused by objects, such as knives and bullets, that pierce the surface of the body and damage internal tissues and organs
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Potential energy
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The product of mass, gravity, and height, which is converted into kinetic energy and results in injury, such as from a fall
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what are the three collisions that occur in every crash
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The collision of the car against some type of object; the collision of the passenger against the interior of the car; the collision of the passenger's internal organs against the solid structures of the body
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When considering the severity of a fall, what should you take into account
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The height of the fall; the surface struck; the part of the body that hit first, followed by the path of energy displacement
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What is the relation of speed and mass when considering the damage done by a moving object
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If the mass of the bullet is doubled, the energy that is available to cause injury is doubled. If the speed (velocity) of the bullet is doubled, the energy that is available to cause injury is quadrupled
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How high is a fall need to be to be considered significant
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A height greater than 15 feet or three times the patient's height
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What are the considerations for car versus pedestrian accident
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Estimate the speed of the vehicle; determine whether the patient was thrown and what distance or whether the patient was struck and pulled under the car; evaluate the car for structural damage that might indicate contact points
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What are common injuries in rear-end collisions
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Whiplash type injuries
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What is another name for lateral collisions
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T-bone collisions
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What is submarining the seatbelt
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When the person's body goes under the shoulder restraint when the lap portion is not attached
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What are Newton's three laws of motion
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First: an object at rest tends to stay at rest objects in motion tend to stay in motion unless acted upon by some force. Second: force equals mass times acceleration; in which acceleration is the change in velocity that occurs over time. Third: for every action, there is an equal and opposite reaction
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Define work
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Force acting over a distance
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How do you calculate kinetic energy
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One half mass times velocity squared
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What is potential energy product of
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Mass, force of gravity, and height
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