Trauma

Question 1

Newton’s 1st Law of Motion

Answer 1

Unless it is acted on by a force, a body at rest will remain at rest and a body in motion will move at a constant speed in a straight line (law of inertia).

Question 2

Newton’s 2nd Law of Motion

Answer 2

When a force is applied to a body, the body accelerates, and the acceleration is directly proportional to the force applied and inversely proportional to the mass of the body.

Force = Mass x Acceleration

Question 3

Newton’s 3rd Law of Motion

Answer 3

For every action there is an equal and opposite reaction.

Question 4

Killers in Flight

Answer 4

Tentsion Pneumothorax

Cardiac Tamponade

Hypovolemia

Question 5

Gunshot Wounds

Answer 5

Velocity is the most important factor in damage

• Low velocity - crossbow - 300fps
• Moderate Velocity - handgun - 900-1500fps
• High Velocity - rifle - >2000fps

Question 6

Side Impact MVC

Answer 6

• Rib fractures
• Splenic rupture
• Clavicular fractures
• Femur fractures

Question 7

Front Impact MVC

Answer 7

• Rib fractures
• Concussion, skull Fx
• Dislocated hips, acetabular Fx

Question 8

Rear Impact MVC

Answer 8

• T12-L1 most common back injury
• T12 Fx also called Chance Fx - increased “chance” of splenic injury
• C2 (Hangman’s) Fx also common

Question 9

Rollover MVC

Answer 9

• Injury pattern unpreditable
• Possible C1 (Jefferson’s) Fx due to axial loading
• Lap belt injuries - clasp knife effect

Question 10

Front Impact MCA

Answer 10

All lower extremities from impact with handlebars while moving forward, abdominal injuries

Question 11

Side Impact MCA

Answer 11

Open lowere extremity Fx’s

Question 12

ATV Crash

Answer 12

Clavicular and sternal Fx’s common

Question 13

Snowmobile Crash

Answer 13

C2 fractures common