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Kinetics of Trauma
- The science of analyzing mechanisms of injury
- Helps you to predict the kind and extent of injuries as a basis for your priority decisions regarding continuing assessment, care, and transport
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Kinetics
The branch of mechanics dealing with the movements of bodies, so understanding kinetics is helpful in understanding mechanisms of injury and trauma
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Law of Inertia
A body at rest will remain at rest, and a body in motion will remain in motion, unless acted upon by an outside force
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Trajectory
The path or motion of a projectile during its travel
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Dissipation of Energy
The way energy is transferred to the human body from the force acting on it
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Drag
The factors that slow a bullet down, such as wind resistance
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Profile
The impact point of the bullet
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Cavitation
The cavity in the body tissues formed by a pressure wave resulting from the kinetic energy of the bullet
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Fragmentation
A bullet that breaks up into small pieces or releases small pieces upon impact increases the body damage
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Primary Phase Injuries
- Due to the pressure wave of the blast
- Primarily affect the gas-containing organs
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Secondary Phase Injuries
- Due to flying debris propelled by the force of the blast, or blast wind.
- Lacerations, impaled objects, fractures, and burns
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Tertiary Phase Injuries
Occur when the patient is thrown away from the source of the blast
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Level I- Regional Trauma Center
Can manage all types of trauma 24 hours a day, 7 days a week
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Level II- Area Trauma Center
- Can manage most trauma with surgical capabilities 24 hours a day, 7 days a week
- They are capable of stabilizing more specialized trauma patients ad then transferring them to a level I center
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Level III- Community Trauma Center
- Has some surgical capability and specially trained emergency department personnel to manage trauma
- Focuses on stabilizing the seriously injured trauma patient and then transferring to a higher-level center
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Level IV- Trauma Facility
Small community hospital in a remote area capable of stabilizing seriously injured trauma patients ad then transferring them to a high-level trauma center
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