EXAM 50 QUESTIONS AND
CORRECT {VERIFIED} ANSWERS
What are the definitive options for pelvic fracture stabilization and hemorrhage
control? - ANSWER - External Fixation
Interventional Radiology
Open reduction & Internal fixation
How are closed mid-shaft femur fractures managed? - ANSWER - Intramedullary
nail fixation
What makes a fracture comminuted? - ANSWER - The bone is in multiple pieces
Physiologic criteria for trauma center care? - ANSWER - SBP<90
Resp rate <10 or >29
GCS <14
What is Kinematics? - ANSWER - The process of predicting potential injuries based
on analysis of the forces involved
Dose of energy is? - ANSWER - The nature and amount of force
,Characteristic of wounding agent? - ANSWER - Type of energy and how it was
applied
Force - ANSWER - The dose of energy involved
Which gender is the majority of trauma? - ANSWER - Male
Incidence of trauma peaks at what age? - ANSWER - Teens and young adult
Blunt trauma Classifications include? - ANSWER - MVA
Auto vs. pedestrian
Falls
Struck by or against an object
Trauma mortality based on organ system failure? - ANSWER - 1 organ system
failure=4%
2 organ system failures=32%
3 organ system failures=67%
4 organ system failures=90%
What are the four collisions? - ANSWER - 1. The vehicle
2. The occupants
3. The internal organs
4. The secondary impacts
,Energy transmission in a rollover depends on? - ANSWER - Deceleration distance
Energy is dissipated over the distance of the roll and whether or not the
occupants are restrained
Car vs pedestrian injuries depend on? - ANSWER - Point of contact with the care
Height of hood & bumper
Size & weight of vehicle
Height of patient
Direction patient was facing when struck
What is the most common mechanism of injury in all age groups? - ANSWER -
Falls
Factors predicting fall injuries are? - ANSWER - Fall height (velocity)
Landing surface (deceleration distance)
Point of impact on the body
Wound ballistics- permanent cavity - ANSWER - Cavity is the a function of the size,
shape, and characteristic of the missile (mass)
For every second of fall time, speed increases by? - ANSWER - Speed increases by
approximately 20 MPH
Define Shock? - ANSWER - A state in which cellular oxygen demand exceeds
supply
, When the cost of tissue oxygen is higher than the body can pay, an oxygen debt
develops.
Types of shock per TCAR? - ANSWER - Pumps-Site of defect heart
Pipes- site of defect is artery, veins or capillaries
Fluid-intravascular, interstitial or intracellular
VS in shock? - ANSWER - Narrow pulse pressure
Tachycardia
Low CO
How many ATP molecules are produced with oxygen & glucose? - ANSWER - 32
ATP molecules
How many ATP molecules are produced without oxygen? - ANSWER - 2 ATP
molecules
Normal pH? - ANSWER - Refernce range is 7.35-7.45, but actual normal range is
7.38-7.42
What is the footprint of shock? - ANSWER - Lactic Acidosis
What 2 things affect the amount of oxygen availalbe to the cells? - ANSWER -
Temperature & pH, which is the oxyhemoglobin dissociation curve