# Penetrating Trauma Flashcards Preview

## Exam 9 > Penetrating Trauma > Flashcards

Flashcards in Penetrating Trauma Deck (50)
1
Q

The speed (or velocity) of an object has a ______ relationship to its kinetic energy.

A

Squared

2
Q

If a projectile passes through the object, the energy transferred is?

A

Equal to the kinetic energy prior to entry minus the energy remaining in the projectile as it exits

3
Q

The faster the bullet, the ____ the curve of travel and the ____ its trajectory.

A

Flatter

Straighter

4
Q

______ is the path a projectile follows.

A

Trajectory

5
Q

Define drag

A

The forces acting on a projectile in motion to slow its progress

6
Q

____ is the outward motion of tissue due to a projectiles passage, resulting in a temporary cavity and vacuum

A

Cavitation

7
Q

What is a bullets profile?

A

The size and shape of a projectile as it contacts a target

8
Q

The ____ is the swing or wobble around the axis of a projectiles travel

A

Yaw

9
Q

If you double the mass of an object, it will have ______ the kinetic energy if the speed of the object remains the same.

A

Twice

10
Q

The faster a projectile travels, the more _____ it experiences and the greater the _____.

A

Drag

Slowing effect

11
Q

The energy exchange rate is related to?

A

The size of the projectiles contacting surface and to its shape

12
Q

The larger the surface profile, the greater the _____ exchange rate, the more quickly the bullet _____and the more extensive the damage to surrounding tissue.

A

Energy

Slows

13
Q

The longer the bullet, the ___ the mass is from its leading edge

A

Farther

14
Q

If a bullet continues to tumble, the bullet will ____ and the ____ of the shot will be diminished.

A

Slow

Accuracy

15
Q

Yaw greatly increases as the bullet begins __________.

A

It’s penetration

16
Q

Projectiles may increase their profile and their energy exchange rate by ________ When they strike a medium denser than air.

A

Deforming

17
Q

A handgun is a ____-velocity weapon with _____ accuracy that is most effective at _____ range.

A

Medium
Limited
Close

18
Q

The severity of a handgun injury is usually related to?

A

The organs directly damaged by the bullets passage

19
Q

The ____ fires a heavier projectile than the handgun, though a much longer barrel, and with much greater muzzle velocity.

A

Rifle

20
Q

The damage caused by ______ energy rifle bullets can extend well beyond the actual track of the projectile.

A

High

21
Q

What is the difference between a rifle and an assault rifle?

A

Assault has larger magazine capacity and will fire in both semi-automatic and automatic

22
Q

What kind of bullet is fired by a shotgun?

A

Single projectile or numerous spheres

23
Q

A shot gun is a _____-velocity gun.

A

Medium

24
Q

The _____ is limited in range and _____.

A

Shotgun

Accuracy

25
Q

With knives and arrows, damage is usually limited to?

A

Physical injury caused by direct contact between the blade or object and the victims tissue

26
Q

The severity of a low-velocity penetrating wound can be often difficult to asses because?

A

The depth and angle of the objects insertion cannot be determined from the visible wound

27
Q

What three factors determine damage pathway that a high-velocity projectile inflicts?

A

Direct injury
Pressure shock wave
Cavitation

28
Q

Direct injury is?

A

The damage done as the projectile strike tissue, contuses and tears that tissue, and pushes the tissue out of its way

29
Q

The ___ cavity is a space created behind the high-energy bullet as tissue moves rapidly away from the bullets path.

A

Temporary

30
Q

Cavitation creates a vacuum which?

A

Draws in air and any debris or contamination from the enters the wound and the exit wound

31
Q

The _____ cavity is created by the movement that crushes, stretches, and tears of affected tissues.

A

Permanent

32
Q

What part of the projectile pathway extends beyond the permanent cavity?

A

Zone of injury

33
Q

Knife-wielding males most often strike with a _________ stroke.

A

Forward, outward, or crosswise

34
Q

Knife-wielding females usually strike with an ________ stroke.

A

Overhand and downward

35
Q

____ is the connective strength and elasticity of an object or fabric.

A

Resiliency

36
Q

What organs are considered solid organs?

A

Liver, spleen, kidneys, pancreas, and brain

37
Q

How are solid organs affected when struck by a bullet?

A

Organs compress and stretch, resulting in greater damage more closely associated with the size of the temporary cavity then with the bullets profile

38
Q

Which organs are considered hollow?

A

Bowel, stomach, urinary bladder, and heart

39
Q

What happens to the lungs when a bullet pass through?

A

Air is compressed, thereby slowing and limiting the transmission of the cavitational wave

40
Q

Bullet wounds only infrequently induce an _______ (sucking chest wound).

A

Pneumothorax

41
Q

90 percent of penetrating trauma mortality involves the _____,____, and _____.

A

Thorax
Abdomen

42
Q

_____ is a surgical incision into the cricothyroid membrane

A

Cricothrotomy

43
Q

_____ is the introduction of a needle or other tube into the cricothyroid membrane

A

Cricothyrostomy

44
Q

If frothy blood is associated with a chest wound, anticipate?

A

Developing tension pneumothorax

45
Q

The only Impaled objects that can be removed are?

A

Those lodged in the cheek or trachea that interfere with the airway or those that you must provide CPR

46
Q

The tissue displacement caused by the pressure wave that accompanies a bullet as it travels through human tissue is called:

A

Cavitation

47
Q

Which abdominal organ is the most tolerant of the cavitational wave associated with penetrating trauma?

A

Bowel

48
Q

In a puncture wound resulting from a knife or gunshot injury, the paramedic must always examine patient for:

A

An exit wound

49
Q

Powder burns and crepitus around the entrance generally suggest:

A

A gun used at close range

50
Q

The forces acting on a bullet to slow it down are called:

A

Drag