Trauma Systems/Mechanism Of Injury

Question 1

Which trauma center offers the greatest range of care?

Answer 1

Level 1 trauma centers

Question 2

What does Newton’s first law state?

Answer 2

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.

Question 3

What does Newton’s second law state?

Answer 3

Force equals mass times acceleration/deceleration

F=M✖️A
F=M✖️D

Question 4

What does Newton’s third law state?

Answer 4

For every action, there is an equal and opposite reaction

Question 5

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

Answer 5

Potential energy
Kinetic energy
Work

Question 6

What is the formula for kinetic energy?

Answer 6

(MV^2)/2

Mass times velocity squared divided by 2

Question 7

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

Answer 7

The speed has a greater impact

Question 8

What is cavitation?

Answer 8

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

Question 9

What are the three density categories?

Answer 9

Air
Water
Solid

Question 10

What are two body organs that have air density?

Answer 10

Lungs

Intestinal tract

Question 11

What are four body parts that have water densities?

Answer 11

Vascular system
Liver
Spleen
Muscles

Question 12

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

Answer 12

Bones

Question 13

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

Answer 13

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

Question 14

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

Answer 14

Compression

Changes in velocity

Question 15

In blunt force trauma, how do compression injuries occur?

Answer 15

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

Question 16

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

Answer 16

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

Question 17

What is coup-contrecoup?

Answer 17

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

Question 18

What is the “paper bag effect”?

Answer 18

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

Question 19

What is the mesentery?

Answer 19

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

Question 20

What is the odontoid process?

Answer 20

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

Question 21

What are the three phases of blast injuries?

Answer 21

Primary phase
Secondary phase
Tertiary phase

Question 22

What occurs during the first phase of blast injuries?

Answer 22

The pressure wave of the blast

Question 23

What occurs during the second phase of blast injuries?

Answer 23

Flying debris causes injury

Question 24

What occurs during the third phase of blast injuries?

Answer 24

The patient becomes the flying object

Question 25

How many trauma centers are there?

Answer 25

Four