CHP 30: TRAUMA SYSTEMS AND MOIs Flashcards

1
Q

what is mechanical energy and its two types

A

energy from motion

kinetic (object in motion) and potential (non-moving object)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

what does barometric energy result from

A

radical sudden changes in pressure

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

external factors that determine types of injuries

A

force and energy delivered

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

spreading of impact without breaking skin is called what

A

blunt trauma

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

what injury to suspect with cracked windshield

A

spinal injury

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

velocity vs acceleration

A

velocity: speed
acceleration: change in velocity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

newton’s first law of motion

A

body at rest will remain at rest unless acted on by outside force

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

newton’s second law of motion

A

force that an object can exert is equal to its mass x acceleration

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

5 phases of MVA’s

A

deceleration of vehicle (vehicle hitting another)
deceleration of occupants
deceleration of internal organs
secondary collisions from objects within vehicle
additional impacts (from another vehicle hitting wreck)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

which type of MVA accident has the most survivors

A

rear impacts

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

common airbag injuries

A

chemical burns and abrasions

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

adult vs child vehicle vs pedestrian

A

adult: lateral and posterior injuries
kids: frontal injuries (freeze and stare at car)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

3 MOIs in vehicle vs pedestrian

A

first impact: person with bumper
second: person onto hood or grill
third: body strikes ground

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what is the Waddell triad

A

pattern of vehicle vs pedestrian injuries in kids

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

5, 6, vs 7 story fall

A

5: questionable survivability
6: unlikely survival
7: rarely survivable

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

how to adults vs kids fall

A

kids: head first and upper extremities from trying to break fall
adults: buttocks and wrists from trying to land on feet

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what is the Don Juan syndrome

A

potential injuries from vertical fall to standing position

18
Q

what is Colles fracture

A

fractures of forearm and wrist

19
Q

5 factors of falls

A

height, position, area, surface, physical condition

20
Q

examples of low and high velocity

A

low: knife
high: bullet

21
Q

severity of stab wound depends on what

A

anatomic area involved, depth, blade length, and angle

22
Q

3 primary firearm classifications

A

shotguns, rifles, handguns

23
Q

most critical factor when determining seriousness of gunshot wound

A

type of tissue through which it passes

24
Q

how to differentiate entrance from exit wound

A

entrance: can have powder burns
exit: usually larger and more ragged

25
Q

what is the primary blast injury

A

injuries due to blast pressure wave itself

26
Q

what is the secondary blast injury

A

injuries from missiles being propelled by blast force

27
Q

what is the tertiary blast injury

A

injuries due to impact with another object

28
Q

what is the quaternary blast injury

A

collateral injuries - burns, crush injuries, toxic inhalation

29
Q

what is quinary blast injury

A

long-term damage from biologic, chemical, or radioactive contaminants added to explosive device

30
Q

what on body is effected most by primary blast injury

A

lungs, eardrums, and compressible organs

31
Q

most common cause of death from blast injuries

A

neurologic and head trauma

32
Q

how does pressure waves from explosion effect vitals

A

hypotension and bradycardia from vagal nerve-mediated form of shock

33
Q

what is the platinum 10 minutes

A

on-scene time for trauma patients limited to under 10 mins

34
Q

what is the golden hour

A

hemorrhage control in critically injured patient within 1 hour after traumatic injury

35
Q

two major groups of trauma patients

A

isolated and multisystem

36
Q

what is deviated trachea indicative of

A

tension pneumo

37
Q

what is the trauma score used for and its scale

A

determine likelihood of patient survival
1-16, 16 best possible consisting of GCS score, RR, respiratory expansion, cap refill, and BP

38
Q

what is the revised trauma score and its scale

A

used to assess injury severity in patients with head trauma without multisystem injury
1-12, 12 best possible using GCS score, SBP, and RR

39
Q

what is the trauma lethal triad

A

significant contributor to death in patients with severe traumatic bleeding

hypothermia, coagulopathy, acidosis

40
Q

MOI criteria for transporting to level 1 trauma center

A

fall more than 10 ft, high risk MVC, vehicle vs pedestrian more than 20mph

41
Q

parameters for high-risk MVC

A

12 inches intrusion to occupant side or 18 inches to any part of vehicle, extrication, ejection, unrestrained child, death of occupant in same vehicle

42
Q

contraindications for air transport

A

traumatic cardiac arrest, morbidly obese, barotrauma