EMT Refresher CE Exam Prep – Real Practice Questions, Answers &
Detailed Rationales (Updated 2026) | Patient Assessment &
Trauma Care, Airway Management & Oxygen Therapy, Cardiac &
Respiratory Emergencies, CPR & AED Skills, Shock Management, Medical
Emergencies, Pharmacology Basics, EMS Operations, Pediatric &
Geriatric Care, NREMT Continuing Education Review
Question 1: During primary assessment of an adult patient with suspected
respiratory distress, which finding most urgently indicates the need for positive
pressure ventilation?
A. Respiratory rate of 24 breaths per minute
B. Use of accessory muscles with audible wheezing
C. Inability to speak in full sentences with SpO2 of 92%
D. Agonal gasping respirations with cyanosis
CORRECT ANSWER: D. Agonal gasping respirations with cyanosis
Rationale: Agonal gasping represents ineffective respiratory effort and is a sign of
impending respiratory arrest. When combined with cyanosis, this indicates severe
hypoxia requiring immediate positive pressure ventilation. While options A, B, and C
indicate respiratory distress, they do not represent the same level of immediate life
threat as agonal respirations, which require intervention within seconds to prevent
cardiac arrest.
Question 2: Which statement regarding the use of a bag-valve-mask device for an
adult patient is MOST accurate according to current resuscitation guidelines?
A. Deliver one breath every 3 seconds regardless of patient condition
B. Provide ventilations at a rate of 10-12 breaths per minute with visible chest rise
C. Squeeze the bag completely with each ventilation to ensure adequate tidal volume
D. Use supplemental oxygen only if the patient's SpO2 falls below 90%
CORRECT ANSWER: B. Provide ventilations at a rate of 10-12 breaths per minute
with visible chest rise
Rationale: Current AHA guidelines recommend ventilating adult patients at 10-12
breaths per minute (one breath every 5-6 seconds) with sufficient volume to produce
visible chest rise. Over-ventilation can cause gastric distension, reduce venous return,
and decrease cardiac output. Complete bag compression is not required and may
deliver excessive volume. Oxygen should be administered at the highest concentration
available during resuscitation efforts, not withheld until SpO2 drops.
Question 3: An EMT is caring for a patient with a suspected tension pneumothorax.
Which clinical finding is MOST specific for this condition?
A. Decreased breath sounds on the affected side
B. Tachycardia and hypotension
,C. Tracheal deviation away from the affected side with distended neck veins
D. Subcutaneous emphysema over the chest wall
CORRECT ANSWER: C. Tracheal deviation away from the affected side with
distended neck veins
Rationale: While decreased breath sounds, tachycardia, and hypotension may occur
with tension pneumothorax, they are nonspecific findings. Tracheal deviation away from
the affected side combined with jugular venous distension represents the classic triad
of tension pneumothorax (along with hypotension) and indicates mediastinal shift due
to increasing intrathoracic pressure. This is a life-threatening emergency requiring
immediate needle decompression. Subcutaneous emphysema suggests air leak but
does not confirm tension physiology.
Question 4: When administering oxygen via a non-rebreather mask to a patient in
respiratory distress, what is the MINIMUM flow rate required to ensure the reservoir
bag does not collapse during inspiration?
A. 6 liters per minute
B. 8 liters per minute
C. 10 liters per minute
D. 15 liters per minute
CORRECT ANSWER: D. 15 liters per minute
Rationale: A non-rebreather mask requires a minimum flow rate of 15 L/min to maintain
inflation of the reservoir bag throughout the respiratory cycle and to flush exhaled
carbon dioxide from the mask. Lower flow rates may cause the bag to collapse during
inspiration, allowing the patient to rebreathe exhaled air and reducing the delivered
FiO2. At 15 L/min, a non-rebreather mask can deliver approximately 90-95% oxygen
concentration.
Question 5: Which patient scenario BEST indicates the appropriate use of a
nasopharyngeal airway rather than an oropharyngeal airway?
A. An unconscious adult with no gag reflex following cardiac arrest
B. A semiconscious patient with an intact gag reflex who requires airway adjunct
support
C. A pediatric patient with suspected cervical spine injury
D. An adult with severe facial trauma and oral bleeding
CORRECT ANSWER: B. A semiconscious patient with an intact gag reflex who
requires airway adjunct support
Rationale: Nasopharyngeal airways are better tolerated in patients with an intact gag
reflex because they stimulate the nasopharynx rather than the oropharynx, reducing the
likelihood of vomiting or laryngospasm. Oropharyngeal airways should only be used in
unconscious patients without a gag reflex. While NPAs may be used in cervical spine
,precautions, this is not their primary indication. Severe facial trauma may
contraindicate NPA placement due to risk of intracranial insertion.
Question 6: During suctioning of an adult patient's oropharynx, what is the
MAXIMUM recommended duration for a single suction pass to minimize hypoxia?
A. 5 seconds
B. 10 seconds
C. 15 seconds
D. 20 seconds
CORRECT ANSWER: B. 10 seconds
Rationale: Current guidelines recommend limiting each suction pass to no more than
10 seconds in adults to prevent hypoxia, bradycardia, and mucosal trauma. Prolonged
suctioning removes oxygen from the airway and can cause significant desaturation. Pre-
oxygenation with 100% oxygen before suctioning and allowing recovery time between
passes are essential practices. For pediatric patients, the limit is 5 seconds.
Question 7: A patient presents with stridor, drooling, and difficulty swallowing.
Which intervention should the EMT AVOID?
A. Administering high-flow oxygen via non-rebreather mask
B. Keeping the patient in a position of comfort
C. Attempting to visualize the posterior pharynx with a tongue depressor
D. Preparing for rapid transport with minimal on-scene time
CORRECT ANSWER: C. Attempting to visualize the posterior pharynx with a tongue
depressor
Rationale: The presentation suggests epiglottitis or severe upper airway obstruction.
Manipulating the airway with a tongue depressor or attempting direct visualization can
trigger complete airway obstruction in these patients. Management focuses on
maintaining calm, administering oxygen without forcing the patient to lie supine,
avoiding agitation, and rapid transport with advanced airway backup. The patient should
be allowed to maintain whatever position keeps their airway most patent.
Question 8: Which statement regarding pulse oximetry interpretation is MOST
accurate for EMT practice?
A. An SpO2 reading of 94% always indicates adequate oxygenation in all patients
B. Pulse oximetry reliably detects carbon monoxide poisoning by displaying low
saturation values
C. Poor peripheral perfusion, nail polish, or patient movement can produce falsely
low or unreliable readings
D. Pulse oximetry should replace clinical assessment of respiratory status
CORRECT ANSWER: C. Poor peripheral perfusion, nail polish, or patient movement
can produce falsely low or unreliable readings
, Rationale: Pulse oximetry is a valuable adjunct but has limitations. Factors such as
hypotension, hypothermia, vasoconstriction, dark nail polish, artificial nails, patient
motion, and ambient light can interfere with accurate readings. Additionally, pulse
oximeters cannot distinguish oxyhemoglobin from carboxyhemoglobin, so readings may
appear normal in carbon monoxide poisoning. Clinical assessment of work of
breathing, mental status, and skin color must always accompany pulse oximetry data.
Question 9: When managing a patient with chronic obstructive pulmonary disease
experiencing an acute exacerbation, which oxygen delivery approach is MOST
appropriate initially?
A. Withhold oxygen entirely to avoid suppressing the hypoxic drive
B. Administer high-flow oxygen via non-rebreather mask immediately
C. Start with low-flow oxygen (2-4 L/min via nasal cannula) and titrate to target
SpO2 of 88-92%
D. Use a bag-valve-mask with room air only
CORRECT ANSWER: C. Start with low-flow oxygen (2-4 L/min via nasal cannula) and
titrate to target SpO2 of 88-92%
Rationale: While the concept of "hypoxic drive" in COPD patients has been overstated,
current guidelines recommend cautious oxygen titration in patients with known or
suspected COPD to avoid hypercapnia. Target SpO2 of 88-92% balances adequate
oxygenation with minimizing the risk of worsening hypercapnic respiratory failure.
Oxygen should never be withheld from a hypoxic patient, but delivery should be
controlled and monitored with frequent reassessment of mental status and respiratory
effort.
Question 10: Which anatomical structure is the MOST common site of upper airway
obstruction in an unconscious, supine patient?
A. Epiglottis
B. Tongue
C. Vocal cords
D. Uvula
CORRECT ANSWER: B. Tongue
Rationale: In an unconscious patient lying supine, loss of muscle tone allows the
tongue to fall posteriorly against the posterior pharyngeal wall, causing mechanical
obstruction. This is the most common cause of upper airway obstruction in
unresponsive patients. Simple maneuvers like head-tilt/chin-lift or jaw thrust are
designed to lift the tongue away from the posterior pharynx. While the epiglottis, vocal
cords, or foreign bodies can cause obstruction, they are less common than tongue-
related obstruction in this scenario.
Detailed Rationales (Updated 2026) | Patient Assessment &
Trauma Care, Airway Management & Oxygen Therapy, Cardiac &
Respiratory Emergencies, CPR & AED Skills, Shock Management, Medical
Emergencies, Pharmacology Basics, EMS Operations, Pediatric &
Geriatric Care, NREMT Continuing Education Review
Question 1: During primary assessment of an adult patient with suspected
respiratory distress, which finding most urgently indicates the need for positive
pressure ventilation?
A. Respiratory rate of 24 breaths per minute
B. Use of accessory muscles with audible wheezing
C. Inability to speak in full sentences with SpO2 of 92%
D. Agonal gasping respirations with cyanosis
CORRECT ANSWER: D. Agonal gasping respirations with cyanosis
Rationale: Agonal gasping represents ineffective respiratory effort and is a sign of
impending respiratory arrest. When combined with cyanosis, this indicates severe
hypoxia requiring immediate positive pressure ventilation. While options A, B, and C
indicate respiratory distress, they do not represent the same level of immediate life
threat as agonal respirations, which require intervention within seconds to prevent
cardiac arrest.
Question 2: Which statement regarding the use of a bag-valve-mask device for an
adult patient is MOST accurate according to current resuscitation guidelines?
A. Deliver one breath every 3 seconds regardless of patient condition
B. Provide ventilations at a rate of 10-12 breaths per minute with visible chest rise
C. Squeeze the bag completely with each ventilation to ensure adequate tidal volume
D. Use supplemental oxygen only if the patient's SpO2 falls below 90%
CORRECT ANSWER: B. Provide ventilations at a rate of 10-12 breaths per minute
with visible chest rise
Rationale: Current AHA guidelines recommend ventilating adult patients at 10-12
breaths per minute (one breath every 5-6 seconds) with sufficient volume to produce
visible chest rise. Over-ventilation can cause gastric distension, reduce venous return,
and decrease cardiac output. Complete bag compression is not required and may
deliver excessive volume. Oxygen should be administered at the highest concentration
available during resuscitation efforts, not withheld until SpO2 drops.
Question 3: An EMT is caring for a patient with a suspected tension pneumothorax.
Which clinical finding is MOST specific for this condition?
A. Decreased breath sounds on the affected side
B. Tachycardia and hypotension
,C. Tracheal deviation away from the affected side with distended neck veins
D. Subcutaneous emphysema over the chest wall
CORRECT ANSWER: C. Tracheal deviation away from the affected side with
distended neck veins
Rationale: While decreased breath sounds, tachycardia, and hypotension may occur
with tension pneumothorax, they are nonspecific findings. Tracheal deviation away from
the affected side combined with jugular venous distension represents the classic triad
of tension pneumothorax (along with hypotension) and indicates mediastinal shift due
to increasing intrathoracic pressure. This is a life-threatening emergency requiring
immediate needle decompression. Subcutaneous emphysema suggests air leak but
does not confirm tension physiology.
Question 4: When administering oxygen via a non-rebreather mask to a patient in
respiratory distress, what is the MINIMUM flow rate required to ensure the reservoir
bag does not collapse during inspiration?
A. 6 liters per minute
B. 8 liters per minute
C. 10 liters per minute
D. 15 liters per minute
CORRECT ANSWER: D. 15 liters per minute
Rationale: A non-rebreather mask requires a minimum flow rate of 15 L/min to maintain
inflation of the reservoir bag throughout the respiratory cycle and to flush exhaled
carbon dioxide from the mask. Lower flow rates may cause the bag to collapse during
inspiration, allowing the patient to rebreathe exhaled air and reducing the delivered
FiO2. At 15 L/min, a non-rebreather mask can deliver approximately 90-95% oxygen
concentration.
Question 5: Which patient scenario BEST indicates the appropriate use of a
nasopharyngeal airway rather than an oropharyngeal airway?
A. An unconscious adult with no gag reflex following cardiac arrest
B. A semiconscious patient with an intact gag reflex who requires airway adjunct
support
C. A pediatric patient with suspected cervical spine injury
D. An adult with severe facial trauma and oral bleeding
CORRECT ANSWER: B. A semiconscious patient with an intact gag reflex who
requires airway adjunct support
Rationale: Nasopharyngeal airways are better tolerated in patients with an intact gag
reflex because they stimulate the nasopharynx rather than the oropharynx, reducing the
likelihood of vomiting or laryngospasm. Oropharyngeal airways should only be used in
unconscious patients without a gag reflex. While NPAs may be used in cervical spine
,precautions, this is not their primary indication. Severe facial trauma may
contraindicate NPA placement due to risk of intracranial insertion.
Question 6: During suctioning of an adult patient's oropharynx, what is the
MAXIMUM recommended duration for a single suction pass to minimize hypoxia?
A. 5 seconds
B. 10 seconds
C. 15 seconds
D. 20 seconds
CORRECT ANSWER: B. 10 seconds
Rationale: Current guidelines recommend limiting each suction pass to no more than
10 seconds in adults to prevent hypoxia, bradycardia, and mucosal trauma. Prolonged
suctioning removes oxygen from the airway and can cause significant desaturation. Pre-
oxygenation with 100% oxygen before suctioning and allowing recovery time between
passes are essential practices. For pediatric patients, the limit is 5 seconds.
Question 7: A patient presents with stridor, drooling, and difficulty swallowing.
Which intervention should the EMT AVOID?
A. Administering high-flow oxygen via non-rebreather mask
B. Keeping the patient in a position of comfort
C. Attempting to visualize the posterior pharynx with a tongue depressor
D. Preparing for rapid transport with minimal on-scene time
CORRECT ANSWER: C. Attempting to visualize the posterior pharynx with a tongue
depressor
Rationale: The presentation suggests epiglottitis or severe upper airway obstruction.
Manipulating the airway with a tongue depressor or attempting direct visualization can
trigger complete airway obstruction in these patients. Management focuses on
maintaining calm, administering oxygen without forcing the patient to lie supine,
avoiding agitation, and rapid transport with advanced airway backup. The patient should
be allowed to maintain whatever position keeps their airway most patent.
Question 8: Which statement regarding pulse oximetry interpretation is MOST
accurate for EMT practice?
A. An SpO2 reading of 94% always indicates adequate oxygenation in all patients
B. Pulse oximetry reliably detects carbon monoxide poisoning by displaying low
saturation values
C. Poor peripheral perfusion, nail polish, or patient movement can produce falsely
low or unreliable readings
D. Pulse oximetry should replace clinical assessment of respiratory status
CORRECT ANSWER: C. Poor peripheral perfusion, nail polish, or patient movement
can produce falsely low or unreliable readings
, Rationale: Pulse oximetry is a valuable adjunct but has limitations. Factors such as
hypotension, hypothermia, vasoconstriction, dark nail polish, artificial nails, patient
motion, and ambient light can interfere with accurate readings. Additionally, pulse
oximeters cannot distinguish oxyhemoglobin from carboxyhemoglobin, so readings may
appear normal in carbon monoxide poisoning. Clinical assessment of work of
breathing, mental status, and skin color must always accompany pulse oximetry data.
Question 9: When managing a patient with chronic obstructive pulmonary disease
experiencing an acute exacerbation, which oxygen delivery approach is MOST
appropriate initially?
A. Withhold oxygen entirely to avoid suppressing the hypoxic drive
B. Administer high-flow oxygen via non-rebreather mask immediately
C. Start with low-flow oxygen (2-4 L/min via nasal cannula) and titrate to target
SpO2 of 88-92%
D. Use a bag-valve-mask with room air only
CORRECT ANSWER: C. Start with low-flow oxygen (2-4 L/min via nasal cannula) and
titrate to target SpO2 of 88-92%
Rationale: While the concept of "hypoxic drive" in COPD patients has been overstated,
current guidelines recommend cautious oxygen titration in patients with known or
suspected COPD to avoid hypercapnia. Target SpO2 of 88-92% balances adequate
oxygenation with minimizing the risk of worsening hypercapnic respiratory failure.
Oxygen should never be withheld from a hypoxic patient, but delivery should be
controlled and monitored with frequent reassessment of mental status and respiratory
effort.
Question 10: Which anatomical structure is the MOST common site of upper airway
obstruction in an unconscious, supine patient?
A. Epiglottis
B. Tongue
C. Vocal cords
D. Uvula
CORRECT ANSWER: B. Tongue
Rationale: In an unconscious patient lying supine, loss of muscle tone allows the
tongue to fall posteriorly against the posterior pharyngeal wall, causing mechanical
obstruction. This is the most common cause of upper airway obstruction in
unresponsive patients. Simple maneuvers like head-tilt/chin-lift or jaw thrust are
designed to lift the tongue away from the posterior pharynx. While the epiglottis, vocal
cords, or foreign bodies can cause obstruction, they are less common than tongue-
related obstruction in this scenario.
