P R E H O S P I TA L T R A U M A L I F E S U P P O R T
PHTLS 10TH EDITION POST TEST STUDY
GUIDE
COMPREHENSIVE PRACTICE EXAM & PREPARATION MANUAL
FEATURED: 200 ORIGINAL PRACTICE QUESTIONS WITH DETAILED
RATIONALES
This Study Guide Features:
200 Original Practice Questions: Rigorously crafted to test application, assessment, and
critical decision-making skills.
Zero Duplicate Stems: Every question explores a unique clinical scenario,
pathophysiology concept, or protocol.
Detailed Green Rationales: Complete explanations explaining why the correct choice is
optimal and why distractors are inadequate.
Clear Red Answer Keys: Formatted for rapid self-assessment and visual clarity.
Systematic Modular Layout: Aligned with the Prehospital Trauma Life Support (PHTLS)
10th Edition core curriculum.
Notice & Disclaimer: This study guide is an independent educational resource created solely for exam preparation, knowledge
reinforcement, and self-assessment. It is not an official test bank, nor does it contain actual, proprietary, or leaked examination
questions from any testing authority. All scenarios, clinical vignettes, and questions are 100% original content constructed to
reflect the principles and standard guidelines set forth in the PHTLS 10th Edition curriculum.
Standard Academic & Clinical Practice Edition ( Guidelines)
,PHTLS 10TH EDITION STUDY GUIDE 200 Comprehensive Practice Questions
TABLE OF CONTENTS BY MODULE
Module 1: Kinematics, Trauma Systems & Primary Assessment Questions 1 – 30
Module 2: Airway & Ventilation Management Questions 31 – 60
Module 3: Shock, Hemorrhage Control & Fluid Resuscitation Questions 61 – 95
Module 4: Thoracic & Abdominal Trauma Questions 96 – 130
Module 5: Head & Spinal Cord Trauma Questions 131 – 165
Module 6: Musculoskeletal, Environmental & Special Populations Questions 166 – 200
MODULE 1: KINEMATICS, TRAUMA SYSTEMS & PRIMARY
ASSESSMENT
Trauma Dynamics, Scene Management, and Initial Resuscitation Priorities
Question 1
Upon arrival at a high-velocity motor vehicle collision, an emergency responder notes significant frontal intrusion
and steering wheel deformation. According to the principles of kinematics, which injury pattern should be
anticipated in an unrestrained driver following a frontal impact?
A. Contralateral cervical strain and isolation of lumbar vertebrae fractures.
B. Bilateral femur fractures, posterior hip dislocation, and myocardial contusion.
C. Ipsilateral renal laceration and isolated clavicle fracture.
D. Diffuse axonal injury without thoracic involvement.
Correct Answer: B
RATIONALE:
In a frontal impact where the unrestrained driver follows a down-and-under path, the knees strike the dashboard,
transmitting energy through the femurs to the acetabulum/hip, while the chest impacts the steering wheel causing
blunt cardiac injury (contusion). Options A, C, and D do not reflect the classic down-and-under or up-and-over frontal
impact force trajectories.
,Question 2
During the initial primary assessment of an adult trauma patient, which finding represents the most immediate,
life-threatening priority that supersedes all other interventions?
A. Snoring respirations with an intact gag reflex.
B. Active, spurting arterial hemorrhage from an extremity.
C. Bilateral asymmetrical pupils following blunt head trauma.
D. Absence of a palpable radial pulse with weak carotid pulse.
Correct Answer: B
RATIONALE:
Under current PHTLS guidelines (XABCDE approach), catastrophic external bleeding (X) takes priority over airway,
breathing, and circulation because massive arterial exsanguination can cause death within minutes, before airway
management can be completed.
Question 3
A patient involved in a lateral impact motor vehicle crash ("broadside" or "T-bone") presents with severe chest
pain and dyspnea. Which underlying anatomic force causes aortic rupture in lateral impact trauma?
A. Excessive axial loading on the thoracic spine.
B. Rotational acceleration causing tearing at the ligamentum arteriosum.
C. Shearing forces resulting from differential mobility of the fixed thoracic aorta versus the mobile heart and arch.
D. Direct compression of the sternum against the vertebral column.
Correct Answer: C
RATIONALE:
Aortic tear or disruption typically occurs at the ligamentum arteriosum due to rapid deceleration or lateral shearing,
where the mobile aortic arch moves independently of the fixed descending aorta. Compression and axial loading are
mechanisms for crush or spinal injuries rather than classic aortic shear.
, Question 4
An adult pedestrian is struck by the bumper of a full-sized SUV traveling at 40 mph. According to Waddell’s triad
for pediatric and adult pedestrian impacts, what classic pattern of injuries should be suspected?
A. Calcaneus fracture, lumbar spine collapse, and bilateral wrist fractures.
B. Fractured femur/tibia, thoracic or abdominal trauma, and contralateral head injury.
C. Cervical dislocation, pelvic fracture, and bilateral calcaneal crush.
D. Forearm fractures, sternal fracture, and facial lacerations.
Correct Answer: B
RATIONALE:
Waddell's triad describes a predictable injury pattern in pedestrian-versus-automobile collisions: initial bumper impact
to lower extremity (femur/tibia), torso impact with the hood/grille (thoracic/abdominal), and secondary impact with the
ground (head/neck).
Question 5
When evaluating the scene of an explosion, a responder recognizes that primary blast injuries are caused
specifically by which physical force?
A. Shrapnel and debris striking the victim's body.
B. The patient being thrown against stationary objects by the blast wind.
C. The supersonic high-pressure wave passing through gas-containing organs.
D. Inhalation of toxic gases and thermal burns from the flame front.
Correct Answer: C
RATIONALE:
Primary blast injuries are caused directly by the blast shockwave traversing hollow, gas-filled organs (lungs, GI tract,
tympanic membranes). Secondary injuries stem from shrapnel; tertiary from displacement of the body; quaternary
from heat, toxic gas, or radiation.
PHTLS 10TH EDITION POST TEST STUDY
GUIDE
COMPREHENSIVE PRACTICE EXAM & PREPARATION MANUAL
FEATURED: 200 ORIGINAL PRACTICE QUESTIONS WITH DETAILED
RATIONALES
This Study Guide Features:
200 Original Practice Questions: Rigorously crafted to test application, assessment, and
critical decision-making skills.
Zero Duplicate Stems: Every question explores a unique clinical scenario,
pathophysiology concept, or protocol.
Detailed Green Rationales: Complete explanations explaining why the correct choice is
optimal and why distractors are inadequate.
Clear Red Answer Keys: Formatted for rapid self-assessment and visual clarity.
Systematic Modular Layout: Aligned with the Prehospital Trauma Life Support (PHTLS)
10th Edition core curriculum.
Notice & Disclaimer: This study guide is an independent educational resource created solely for exam preparation, knowledge
reinforcement, and self-assessment. It is not an official test bank, nor does it contain actual, proprietary, or leaked examination
questions from any testing authority. All scenarios, clinical vignettes, and questions are 100% original content constructed to
reflect the principles and standard guidelines set forth in the PHTLS 10th Edition curriculum.
Standard Academic & Clinical Practice Edition ( Guidelines)
,PHTLS 10TH EDITION STUDY GUIDE 200 Comprehensive Practice Questions
TABLE OF CONTENTS BY MODULE
Module 1: Kinematics, Trauma Systems & Primary Assessment Questions 1 – 30
Module 2: Airway & Ventilation Management Questions 31 – 60
Module 3: Shock, Hemorrhage Control & Fluid Resuscitation Questions 61 – 95
Module 4: Thoracic & Abdominal Trauma Questions 96 – 130
Module 5: Head & Spinal Cord Trauma Questions 131 – 165
Module 6: Musculoskeletal, Environmental & Special Populations Questions 166 – 200
MODULE 1: KINEMATICS, TRAUMA SYSTEMS & PRIMARY
ASSESSMENT
Trauma Dynamics, Scene Management, and Initial Resuscitation Priorities
Question 1
Upon arrival at a high-velocity motor vehicle collision, an emergency responder notes significant frontal intrusion
and steering wheel deformation. According to the principles of kinematics, which injury pattern should be
anticipated in an unrestrained driver following a frontal impact?
A. Contralateral cervical strain and isolation of lumbar vertebrae fractures.
B. Bilateral femur fractures, posterior hip dislocation, and myocardial contusion.
C. Ipsilateral renal laceration and isolated clavicle fracture.
D. Diffuse axonal injury without thoracic involvement.
Correct Answer: B
RATIONALE:
In a frontal impact where the unrestrained driver follows a down-and-under path, the knees strike the dashboard,
transmitting energy through the femurs to the acetabulum/hip, while the chest impacts the steering wheel causing
blunt cardiac injury (contusion). Options A, C, and D do not reflect the classic down-and-under or up-and-over frontal
impact force trajectories.
,Question 2
During the initial primary assessment of an adult trauma patient, which finding represents the most immediate,
life-threatening priority that supersedes all other interventions?
A. Snoring respirations with an intact gag reflex.
B. Active, spurting arterial hemorrhage from an extremity.
C. Bilateral asymmetrical pupils following blunt head trauma.
D. Absence of a palpable radial pulse with weak carotid pulse.
Correct Answer: B
RATIONALE:
Under current PHTLS guidelines (XABCDE approach), catastrophic external bleeding (X) takes priority over airway,
breathing, and circulation because massive arterial exsanguination can cause death within minutes, before airway
management can be completed.
Question 3
A patient involved in a lateral impact motor vehicle crash ("broadside" or "T-bone") presents with severe chest
pain and dyspnea. Which underlying anatomic force causes aortic rupture in lateral impact trauma?
A. Excessive axial loading on the thoracic spine.
B. Rotational acceleration causing tearing at the ligamentum arteriosum.
C. Shearing forces resulting from differential mobility of the fixed thoracic aorta versus the mobile heart and arch.
D. Direct compression of the sternum against the vertebral column.
Correct Answer: C
RATIONALE:
Aortic tear or disruption typically occurs at the ligamentum arteriosum due to rapid deceleration or lateral shearing,
where the mobile aortic arch moves independently of the fixed descending aorta. Compression and axial loading are
mechanisms for crush or spinal injuries rather than classic aortic shear.
, Question 4
An adult pedestrian is struck by the bumper of a full-sized SUV traveling at 40 mph. According to Waddell’s triad
for pediatric and adult pedestrian impacts, what classic pattern of injuries should be suspected?
A. Calcaneus fracture, lumbar spine collapse, and bilateral wrist fractures.
B. Fractured femur/tibia, thoracic or abdominal trauma, and contralateral head injury.
C. Cervical dislocation, pelvic fracture, and bilateral calcaneal crush.
D. Forearm fractures, sternal fracture, and facial lacerations.
Correct Answer: B
RATIONALE:
Waddell's triad describes a predictable injury pattern in pedestrian-versus-automobile collisions: initial bumper impact
to lower extremity (femur/tibia), torso impact with the hood/grille (thoracic/abdominal), and secondary impact with the
ground (head/neck).
Question 5
When evaluating the scene of an explosion, a responder recognizes that primary blast injuries are caused
specifically by which physical force?
A. Shrapnel and debris striking the victim's body.
B. The patient being thrown against stationary objects by the blast wind.
C. The supersonic high-pressure wave passing through gas-containing organs.
D. Inhalation of toxic gases and thermal burns from the flame front.
Correct Answer: C
RATIONALE:
Primary blast injuries are caused directly by the blast shockwave traversing hollow, gas-filled organs (lungs, GI tract,
tympanic membranes). Secondary injuries stem from shrapnel; tertiary from displacement of the body; quaternary
from heat, toxic gas, or radiation.
