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Work?
Force acting over distance (movement)
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Kinetic energy?
Energy of moving object (velocity)
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Potential energy?
Product of weight, gravity, and height
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Significant Mechanisms of Injury (MOI)?
- Severe deformities to the frontal part of the vehicle (> 20 cm intrusion)
- Moderate intrusion from a T-bone accident
- Severe damage from the rear
- Collisions in which rotation is involved
- Death of an occupant
- No seatbelt or airbag deployment
- Star crack on windshield (Head injury)
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Newton’s First Law
Objects at rest tend to stay at rest, and objects in motion tend to stay in motion, unless they are acted upon by some force
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Newton’s Second Law
- Force (F) is Mass (M) times Acceleration (A)
- F=MA
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Newton’s Third Law
For every action, there is an equal and opposite reaction
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Three collisions occur in a crash?
- Car vs. Object
- Patient vs. Car
- Organs/Structures vs. Patient
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Sizing a Neck collar?
- Measure to the inside markings
- Anatomy: Angle of the jaw to the top of the trapezius muscle
- Collar itself...
- Bottom part of the plastic to...
- Lift up your highest finger - It's sized to the last hole that the highest finger covers
- Size it, and lock it
- Little plastic pin lines up to the sternum (center)
- Can you open your mouth?
- Can you breath basically
- Can you swallow?
- No hyper-extended the neck
- If they are between sizes, go slightly too small as this wont hyper extend their neck
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Getting pt. onto a backboard?
- Always roll onto the undamaged side
- 1. Log roll onto side (EMS @Head in charge)
- 2. Check DCAPPBTLS & TIC
- 3. EMS @Shoulder pulls BBoard closer
- 4. Roll on
- 5. V-Slide down to middle, then up to top
- 6. Shoulder to hip
- 7. Shoulder to hip
- 8. Hip to knee
- 9. Hip to knee
- 10. Head blocks beside head
- 11. Star pattern across head
- 12. One under the chin
- 13. Partner may now let go
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If bilateral damaged?
- Scoop time
- 1. Size it
- 2. Disconnect halves
- 3. Walk the other half around the pt.
- 4. Head end snaps first
- 5. Make sure not to pinch their spine and stuff
- 6. Clip bottom
- 7. S2H
- 8. S2H
- 9. H2K
- 10. H2K
- 11. Head blocks + Star + chin
- 12. Partner may let go
- 13. Scoop is lifted…
- 14. Check DCAPPBTLS & TIC
- 15. ...strapped to BBoard with 3 straps
- 16. Whole thing on gurney with 3 straps
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KEDs?
- Stable sitting Pt. only (so not gonna see it)
- 1. MIDDLE
- 2. BOTTOM
- 3. LEGS
- 4. HEAD
- 5. TOP
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No MOI, unwitnessed unconscious?
C-Collar as we have no idea
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We look at the conjunctiva becuase?
it doesn't matter what their skin color is.
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