PHTLS 10th Edition Self-Test Examination
Updated Questions and Verified Answers
NAEMT Certification Preparation | 50 Questions | Comprehensive Trauma Care
Section 1: Critical Thinking and Trauma Care Fundamentals (PHTLS Philosophy,
Golden Period, and Evidence-Based Practice) (Q1-8)
Q1: According to the PHTLS 10th Edition philosophy, which of the following best describes the foundation of
PHTLS?
A. PHTLS emphasizes protocol-driven care that must be followed exactly regardless of clinical
circumstances
B. PHTLS is founded on the belief that all trauma patients deserve the best possible care and that every
practitioner must apply critical thinking to optimize patient outcomes [CORRECT]
C. PHTLS focuses exclusively on advanced invasive procedures performed only by physicians
D. PHTLS prioritizes rapid transport over all forms of field intervention
Correct Answer: B
Rationale: The PHTLS 10th Edition explicitly states that the foundation of PHTLS is the belief that all trauma patients
deserve the best possible care, and that every practitioner has a duty to apply critical thinking to optimize patient outcomes.
PHTLS is not a rigid protocol system but rather a framework that requires clinical judgment. Option A incorrectly describes
PHTLS as rigid protocol-driven care, option C is wrong because PHTLS is designed for all prehospital providers, and option
D incorrectly diminishes the importance of field interventions.
Q2: A 34-year-old male was involved in a high-speed motorcycle collision. After initiating spinal motion
restriction and establishing a patent airway, you note his condition is changing. Which of the following best
describes the critical thinking process as defined by PHTLS?
A. A linear process of following assessment algorithms from start to finish without deviation
B. A static process that relies on initial assessment findings to determine all interventions
C. A dynamic process requiring you to develop a plan, initiate it, reassess as care moves forward, and adjust
the plan as the patient's condition or circumstances change [CORRECT]
D. A process that depends primarily on online medical direction for all clinical decisions
Correct Answer: C
Rationale: The PHTLS 10th Edition defines critical thinking in medicine as a dynamic process that requires the healthcare
practitioner to develop a plan of action, initiate the plan, reassess the plan as care for the patient moves forward, and adjust
the plan as the patient's condition or circumstances change. It is neither linear nor static, and while medical direction is
important, critical thinking is an independent practitioner skill. The key word "dynamic" distinguishes the correct answer
from the incorrect options that describe rigid or dependent processes.
Q3: A prehospital care provider prefers to apply a cervical collar before controlling severe arterial bleeding from a
leg wound, stating it is their "preferred method." According to PHTLS principles regarding principles versus
preferences, which statement is correct?
A. Individual preferences always take priority over evidence-based principles in the field
, B. Preferences are individual choices that do not override evidence-based principles, and exsanguinating
hemorrhage must be controlled before airway or cervical spine interventions per the XABCDE approach
[CORRECT]
C. Principles and preferences carry equal weight in clinical decision-making
D. Preferences should be followed only when the provider has more than 5 years of experience
Correct Answer: B
Rationale: PHTLS 10th Edition distinguishes clearly between principles and preferences. The science of medicine provides
the principles of medical care that define the duties required of the prehospital care practitioner. Preferences are individual
choices that do NOT override evidence-based principles. In this scenario, the XABCDE primary survey places
eXsanguinating hemorrhage ("X") before airway ("A") and all other interventions. Severe arterial bleeding must be controlled
immediately, making option B the only correct answer.
Q4: You arrive at the scene of a motor vehicle collision 4 minutes after dispatch. The patient has multiple injuries.
According to the PHTLS concept of the Golden Period and the Platinum Ten Minutes, what is your primary
responsibility regarding scene time?
A. Perform a comprehensive secondary survey on scene before transport to identify all injuries
B. Spend as little time on the scene as possible and expedite field care and transport of the patient to the
appropriate facility for definitive care [CORRECT]
C. Wait for law enforcement to secure the scene completely before beginning patient assessment
D. Remain on scene until all family members are contacted and informed of the patient's condition
Correct Answer: B
Rationale: The PHTLS 10th Edition emphasizes that the time from injury to arrival at the appropriate site for definitive care
is critical to survival, known as the Golden Period. One of the most important responsibilities of a prehospital care
practitioner is to spend as little time on the scene as possible and expedite field care and transport. The Platinum Ten Minutes
further reinforces that the first 10 minutes after injury are critical. Performing comprehensive secondary surveys on scene
delays definitive care. While scene safety is important, waiting for complete law enforcement clearance is not the primary
operational priority once basic safety is established.
Q5: Which of the following best describes evidence-based practice (EBP) as defined in the PHTLS 10th Edition?
A. The exclusive use of randomized controlled trials to guide all prehospital clinical decisions
B. The integration of best available research evidence, clinical expertise, and patient values in making
clinical decisions [CORRECT]
C. Following the most recently published textbook recommendations regardless of field experience
D. Relying solely on the personal experience of the most senior provider on scene
Correct Answer: B
Rationale: Evidence-based practice (EBP) is defined in PHTLS 10th Edition as the integration of three components: the best
available evidence from research, the clinical expertise of the practitioner, and the values and preferences of the patient. EBP
does not rely exclusively on RCTs (option A), nor does it depend solely on textbooks (option C) or personal experience alone
(option D). The integration of all three components is what distinguishes EBP from a purely research-driven or
experience-driven approach to patient care.
Q6: A trauma patient has sustained injuries from a fall from a two-story building. Based on your trauma system
knowledge and triage criteria, which facility is most appropriate for this patient?
A. A Level IV trauma center with basic emergency department capabilities
, B. A free-standing urgent care clinic with X-ray capabilities
C. A Level I or Level II trauma center capable of providing comprehensive definitive care for complex
injuries [CORRECT]
D. A community hospital without surgical capabilities but with an intensive care unit
Correct Answer: C
Rationale: A patient who has fallen from two stories is at high risk for multisystem injuries including head trauma, spinal
injury, thoracic injury, and orthopedic fractures. This patient requires the comprehensive capabilities of a Level I or Level II
trauma center, which can provide immediate surgical intervention, intensive care, and multispecialty consultation. Level IV
centers and urgent care facilities lack the resources for complex trauma management. A community hospital without surgical
capabilities cannot provide the definitive care this patient likely needs.
Q7: During a mass casualty incident (MCI), what should be the FIRST action according to PHTLS guidance?
A. Begin triage of all patients immediately upon arrival
B. Initiate treatment of the most critically injured patient first
C. Determine the need for additional resources before beginning triage or treatment [CORRECT]
D. Begin transport of the first patient identified to the nearest hospital
Correct Answer: C
Rationale: According to PHTLS 10th Edition, the first priority in a mass casualty incident (MCI) is to determine the need
for additional resources BEFORE beginning triage or treatment. This is because the scope of the incident may far exceed the
initial response capabilities, and without adequate resources, effective triage and treatment cannot be sustained. Beginning
triage or treatment before requesting additional resources may result in inadequate care for all patients.
Q8: When performing an evidence-based practice review, which of the following represents the HIGHEST level
of evidence in the hierarchy of evidence?
A. Expert opinion and consensus guidelines
B. Single randomized controlled trial (RCT)
C. Systematic review or meta-analysis of multiple high-quality RCTs [CORRECT]
D. Case series and case reports from a single institution
Correct Answer: C
Rationale: In the hierarchy of evidence, systematic reviews and meta-analyses of multiple high-quality randomized
controlled trials represent the highest level of evidence because they synthesize data from multiple studies, reducing bias and
increasing statistical power. Expert opinion (option A) is actually at the lowest level of the evidence hierarchy. A single RCT
(option B) provides good evidence but is not as strong as a systematic review. Case series (option D) are near the bottom of
the hierarchy, providing only observational data without control groups.
Section 2: Scene Safety, Size-Up, and Kinematics of Trauma (Q9-14)
Q9: You are dispatched to a motor vehicle collision on a busy highway at night. What should be your FIRST
consideration upon approach?
A. Determining the mechanism of injury to predict patient injuries
B. The safety of all emergency responders, ensuring the scene is safe before patient contact [CORRECT]
C. Rapidly extracting the patient to minimize on-scene time
D. Establishing incident command and assigning roles to arriving units
Updated Questions and Verified Answers
NAEMT Certification Preparation | 50 Questions | Comprehensive Trauma Care
Section 1: Critical Thinking and Trauma Care Fundamentals (PHTLS Philosophy,
Golden Period, and Evidence-Based Practice) (Q1-8)
Q1: According to the PHTLS 10th Edition philosophy, which of the following best describes the foundation of
PHTLS?
A. PHTLS emphasizes protocol-driven care that must be followed exactly regardless of clinical
circumstances
B. PHTLS is founded on the belief that all trauma patients deserve the best possible care and that every
practitioner must apply critical thinking to optimize patient outcomes [CORRECT]
C. PHTLS focuses exclusively on advanced invasive procedures performed only by physicians
D. PHTLS prioritizes rapid transport over all forms of field intervention
Correct Answer: B
Rationale: The PHTLS 10th Edition explicitly states that the foundation of PHTLS is the belief that all trauma patients
deserve the best possible care, and that every practitioner has a duty to apply critical thinking to optimize patient outcomes.
PHTLS is not a rigid protocol system but rather a framework that requires clinical judgment. Option A incorrectly describes
PHTLS as rigid protocol-driven care, option C is wrong because PHTLS is designed for all prehospital providers, and option
D incorrectly diminishes the importance of field interventions.
Q2: A 34-year-old male was involved in a high-speed motorcycle collision. After initiating spinal motion
restriction and establishing a patent airway, you note his condition is changing. Which of the following best
describes the critical thinking process as defined by PHTLS?
A. A linear process of following assessment algorithms from start to finish without deviation
B. A static process that relies on initial assessment findings to determine all interventions
C. A dynamic process requiring you to develop a plan, initiate it, reassess as care moves forward, and adjust
the plan as the patient's condition or circumstances change [CORRECT]
D. A process that depends primarily on online medical direction for all clinical decisions
Correct Answer: C
Rationale: The PHTLS 10th Edition defines critical thinking in medicine as a dynamic process that requires the healthcare
practitioner to develop a plan of action, initiate the plan, reassess the plan as care for the patient moves forward, and adjust
the plan as the patient's condition or circumstances change. It is neither linear nor static, and while medical direction is
important, critical thinking is an independent practitioner skill. The key word "dynamic" distinguishes the correct answer
from the incorrect options that describe rigid or dependent processes.
Q3: A prehospital care provider prefers to apply a cervical collar before controlling severe arterial bleeding from a
leg wound, stating it is their "preferred method." According to PHTLS principles regarding principles versus
preferences, which statement is correct?
A. Individual preferences always take priority over evidence-based principles in the field
, B. Preferences are individual choices that do not override evidence-based principles, and exsanguinating
hemorrhage must be controlled before airway or cervical spine interventions per the XABCDE approach
[CORRECT]
C. Principles and preferences carry equal weight in clinical decision-making
D. Preferences should be followed only when the provider has more than 5 years of experience
Correct Answer: B
Rationale: PHTLS 10th Edition distinguishes clearly between principles and preferences. The science of medicine provides
the principles of medical care that define the duties required of the prehospital care practitioner. Preferences are individual
choices that do NOT override evidence-based principles. In this scenario, the XABCDE primary survey places
eXsanguinating hemorrhage ("X") before airway ("A") and all other interventions. Severe arterial bleeding must be controlled
immediately, making option B the only correct answer.
Q4: You arrive at the scene of a motor vehicle collision 4 minutes after dispatch. The patient has multiple injuries.
According to the PHTLS concept of the Golden Period and the Platinum Ten Minutes, what is your primary
responsibility regarding scene time?
A. Perform a comprehensive secondary survey on scene before transport to identify all injuries
B. Spend as little time on the scene as possible and expedite field care and transport of the patient to the
appropriate facility for definitive care [CORRECT]
C. Wait for law enforcement to secure the scene completely before beginning patient assessment
D. Remain on scene until all family members are contacted and informed of the patient's condition
Correct Answer: B
Rationale: The PHTLS 10th Edition emphasizes that the time from injury to arrival at the appropriate site for definitive care
is critical to survival, known as the Golden Period. One of the most important responsibilities of a prehospital care
practitioner is to spend as little time on the scene as possible and expedite field care and transport. The Platinum Ten Minutes
further reinforces that the first 10 minutes after injury are critical. Performing comprehensive secondary surveys on scene
delays definitive care. While scene safety is important, waiting for complete law enforcement clearance is not the primary
operational priority once basic safety is established.
Q5: Which of the following best describes evidence-based practice (EBP) as defined in the PHTLS 10th Edition?
A. The exclusive use of randomized controlled trials to guide all prehospital clinical decisions
B. The integration of best available research evidence, clinical expertise, and patient values in making
clinical decisions [CORRECT]
C. Following the most recently published textbook recommendations regardless of field experience
D. Relying solely on the personal experience of the most senior provider on scene
Correct Answer: B
Rationale: Evidence-based practice (EBP) is defined in PHTLS 10th Edition as the integration of three components: the best
available evidence from research, the clinical expertise of the practitioner, and the values and preferences of the patient. EBP
does not rely exclusively on RCTs (option A), nor does it depend solely on textbooks (option C) or personal experience alone
(option D). The integration of all three components is what distinguishes EBP from a purely research-driven or
experience-driven approach to patient care.
Q6: A trauma patient has sustained injuries from a fall from a two-story building. Based on your trauma system
knowledge and triage criteria, which facility is most appropriate for this patient?
A. A Level IV trauma center with basic emergency department capabilities
, B. A free-standing urgent care clinic with X-ray capabilities
C. A Level I or Level II trauma center capable of providing comprehensive definitive care for complex
injuries [CORRECT]
D. A community hospital without surgical capabilities but with an intensive care unit
Correct Answer: C
Rationale: A patient who has fallen from two stories is at high risk for multisystem injuries including head trauma, spinal
injury, thoracic injury, and orthopedic fractures. This patient requires the comprehensive capabilities of a Level I or Level II
trauma center, which can provide immediate surgical intervention, intensive care, and multispecialty consultation. Level IV
centers and urgent care facilities lack the resources for complex trauma management. A community hospital without surgical
capabilities cannot provide the definitive care this patient likely needs.
Q7: During a mass casualty incident (MCI), what should be the FIRST action according to PHTLS guidance?
A. Begin triage of all patients immediately upon arrival
B. Initiate treatment of the most critically injured patient first
C. Determine the need for additional resources before beginning triage or treatment [CORRECT]
D. Begin transport of the first patient identified to the nearest hospital
Correct Answer: C
Rationale: According to PHTLS 10th Edition, the first priority in a mass casualty incident (MCI) is to determine the need
for additional resources BEFORE beginning triage or treatment. This is because the scope of the incident may far exceed the
initial response capabilities, and without adequate resources, effective triage and treatment cannot be sustained. Beginning
triage or treatment before requesting additional resources may result in inadequate care for all patients.
Q8: When performing an evidence-based practice review, which of the following represents the HIGHEST level
of evidence in the hierarchy of evidence?
A. Expert opinion and consensus guidelines
B. Single randomized controlled trial (RCT)
C. Systematic review or meta-analysis of multiple high-quality RCTs [CORRECT]
D. Case series and case reports from a single institution
Correct Answer: C
Rationale: In the hierarchy of evidence, systematic reviews and meta-analyses of multiple high-quality randomized
controlled trials represent the highest level of evidence because they synthesize data from multiple studies, reducing bias and
increasing statistical power. Expert opinion (option A) is actually at the lowest level of the evidence hierarchy. A single RCT
(option B) provides good evidence but is not as strong as a systematic review. Case series (option D) are near the bottom of
the hierarchy, providing only observational data without control groups.
Section 2: Scene Safety, Size-Up, and Kinematics of Trauma (Q9-14)
Q9: You are dispatched to a motor vehicle collision on a busy highway at night. What should be your FIRST
consideration upon approach?
A. Determining the mechanism of injury to predict patient injuries
B. The safety of all emergency responders, ensuring the scene is safe before patient contact [CORRECT]
C. Rapidly extracting the patient to minimize on-scene time
D. Establishing incident command and assigning roles to arriving units
