SSM TCAR EXAM NEWEST 2025 COMPLETE 200 QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED
ANSWERS)|ALREADY GRADED A+
What is the normal PaO2 and what does it measure? - ANSWER-Normal is 80-100 mmHG
It is a measurement of diffusion
It reflects a problems with alveoli or pulmonary circulation
How do you calculate expected PaO2? - ANSWER-FIO2 x 5
If it's less than expected for a given FIO2, it is a diffusion problem
What does of P:F ratio measure and how is it calculated? - ANSWER-It measures the extent of
pulmonary shunting. It quantifies the relationship between what goes into the lungs and what
gets into the blood.
PaO2/FiO2
What is a normal P:F ratio? - ANSWER-Normal is >450,
lower numbers are worse
Patients who are very sensitive to supplemental oxygen are telling us they have what type of
problems? - ANSWER-It is a diffusion problem
What is DO2? - ANSWER-It is oxygen delivery.
It is impacted by manipulating:
SpO2, Hgb, and CO
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What is Vo2? - ANSWER-Oxygen consumption or use. (It is the difference between the oxygen
sent (SaO2) to the cells and the amount that returns to the heart (SvO2) )
Normal VO2 is 180-280
Lactic acid is the marker of what? - ANSWER-Tissue ischemia -anaerobic metabolism
Normal serum lactate is <2
Rib fractures cause a problem where is the cascade? - ANSWER-Ventilation- because it
interferes with the mechanical process of breathing
Pulmonary contusion causes a problem where in the cascade? - ANSWER-Diffusion
Bruising and edema impair gas exchange
Best parameter to measure is P:F ration
What is the best parameter to measure diffusion? - ANSWER-P:F ratio
A simple pneumothorax presents a problems where in the cascade? - ANSWER-Ventilation
Deflated section of the lung is not participating in gas exchange
An isolated PTX can be treated with a CT in the 2nd ICS
A tension pneuomothorax presents a problem where in the cascade? - ANSWER-Ventilation &
CO
Pulsus paradoxus and unilateral breath sounds
Needle thoracostomy is only appropriate for? - ANSWER-Tension PTX
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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
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