Trauma Systems/Mechanism Of Injury Flashcards Preview

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Flashcards in Trauma Systems/Mechanism Of Injury Deck (25)
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1
Q

Which trauma center offers the greatest range of care?

A

Level 1 trauma centers

2
Q

What does Newton’s first law state?

A

An object at rest tends to stay at rest and an object in motion tends to stay in motion unless acted on by some outside force.

3
Q

What does Newton’s second law state?

A

Force equals mass times acceleration/deceleration

F=M✖️A
F=M✖️D

4
Q

What does Newton’s third law state?

A

For every action, there is an equal and opposite reaction

5
Q

What are three concepts of energy that are typically associated with injury?

A

Potential energy
Kinetic energy
Work

6
Q

What is the formula for kinetic energy?

A

(MV^2)/2

Mass times velocity squared divided by 2

7
Q

What causes more damage, the speed of an object or the mass of an object?

A

The speed has a greater impact

8
Q

What is cavitation?

A

Formation of a temporary cavity as energy produces particle motion and stretches the tissue surrounding the point of impact.

9
Q

What are the three density categories?

A

Air
Water
Solid

10
Q

What are two body organs that have air density?

A

Lungs

Intestinal tract

11
Q

What are four body parts that have water densities?

A

Vascular system
Liver
Spleen
Muscles

12
Q

What body parts have solid densities and are more easy to splinter and fragment?

A

Bones

13
Q

What are the three kinds of collisions in a frontal impact involving a motor vehicle?

A

Collision of car against object (other car,tree,pole)
Collision of passenger against interior of car
Collision of passenger’s internal organs against solid structures of the body

14
Q

What are two types of organ injuries from blunt force trauma?

A

Compression

Changes in velocity

15
Q

In blunt force trauma, how do compression injuries occur?

A

They occur as organs strike the interior of the body during the initial impact

16
Q

In blunt force trauma, how do changes in velocity injuries occur?

A

They occur during acceleration as the organs move forward for the first impact and during deceleration as the organs pull against their attachments

17
Q

What is coup-contrecoup?

A

Damage is done to both sides of an organ as the body moves first in one direction and then in the opposite direction

18
Q

What is the “paper bag effect”?

A

When the pt sees a crash about to happen and gasps which draws in air into the lungs. On impact the lungs “pop” as if you blew up a paper bag and smashed it against your hand

19
Q

What is the mesentery?

A

The peritoneal fold that surrounds the small intestine and connects it to the posterior abdominal wall

20
Q

What is the odontoid process?

A

The toothlike process that extends upward from the axis and about where the atlas rotates

21
Q

What are the three phases of blast injuries?

A

Primary phase
Secondary phase
Tertiary phase

22
Q

What occurs during the first phase of blast injuries?

A

The pressure wave of the blast

23
Q

What occurs during the second phase of blast injuries?

A

Flying debris causes injury

24
Q

What occurs during the third phase of blast injuries?

A

The patient becomes the flying object

25
Q

How many trauma centers are there?

A

Four