EMT-I – Emergency Medical Technician Intermediate Practice Exam
Complete Study Guide Updated 2026 | Verified Questions & Answers
with Detailed Rationales | Comprehensive Review of Advanced Patient
Assessment, Airway & Ventilation Management, Cardiac & Trauma
Emergencies, Pharmacology, IV Therapy, EMS Protocols, Safety &
Infection Control, & NCLEX-Style Clinical Scenarios
Question 1: Which of the following is the MOST appropriate initial airway
intervention for an unconscious adult patient with no suspected spinal injury?
A. Insertion of a supraglottic airway device
B. Head-tilt/chin-lift maneuver
C. Endotracheal intubation
D. Nasopharyngeal airway placement
CORRECT ANSWER: B. Head-tilt/chin-lift maneuver
RATIONALE: The head-tilt/chin-lift maneuver is the foundational, non-invasive
technique to open the airway in an unconscious patient without suspected cervical
spine trauma. It should always precede advanced airway interventions per EMT-I scope
of practice and national guidelines, ensuring basic airway patency before escalating
care.
Question 2: When performing endotracheal intubation, which confirmation method
is considered the MOST reliable in the prehospital setting?
A. Auscultation of bilateral breath sounds
B. Visualization of the tube passing through the vocal cords
C. Presence of condensation in the tube
D. Pulse oximetry reading above 95%
CORRECT ANSWER: B. Visualization of the tube passing through the vocal cords
RATIONALE: Direct visualization of the endotracheal tube passing through the vocal
cords is the gold standard for initial confirmation of correct tracheal placement. While
adjuncts like capnography and auscultation are critical for ongoing verification, visual
confirmation remains the most reliable single method during the intubation procedure
itself.
Question 3: A patient with severe facial trauma is unable to maintain their airway.
Which advanced airway device is CONTRAINDICATED in this scenario?
A. King LT-D supraglottic airway
B. Endotracheal tube via oral route
C. Nasopharyngeal airway
D. Combitube
CORRECT ANSWER: C. Nasopharyngeal airway
,RATIONALE: Nasopharyngeal airways are contraindicated in patients with severe facial
trauma, particularly involving the midface or basilar skull fracture, due to the risk of
intracranial insertion. Supraglottic devices or surgical airways are preferred when oral
intubation is not feasible in such trauma cases.
Question 4: Which medication is typically administered via the endotracheal tube
during cardiac arrest when IV/IO access is unavailable?
A. Amiodarone
B. Epinephrine
C. Atropine
D. Lidocaine
CORRECT ANSWER: B. Epinephrine
RATIONALE: Epinephrine is one of the few medications that can be administered via the
endotracheal route during cardiac arrest when IV/IO access is delayed or unobtainable.
The dose is typically 2-2.5 times the IV dose, diluted in 5-10 mL of sterile water or
normal saline, and followed by positive-pressure ventilations.
Question 5: What is the PRIMARY purpose of using a bougie during difficult
intubation?
A. To confirm end-tidal CO2 detection
B. To provide a guide for endotracheal tube placement
C. To suction secretions from the airway
D. To measure the depth of tube insertion
CORRECT ANSWER: B. To provide a guide for endotracheal tube placement
RATIONALE: A bougie (or gum elastic bougie) is a flexible introducer used to facilitate
endotracheal tube placement in difficult airways. It is advanced through the vocal cords
under direct or indirect visualization, and the endotracheal tube is then threaded over it
into the trachea, improving first-pass success rates.
Question 6: Which of the following is a sign of esophageal intubation?
A. Bilateral chest rise with ventilation
B. End-tidal CO2 waveform present
C. Epigastric sounds heard during ventilation
D. Improved oxygen saturation
CORRECT ANSWER: C. Epigastric sounds heard during ventilation
RATIONALE: Hearing gurgling or air sounds over the epigastrium during ventilation
strongly suggests the endotracheal tube is in the esophagus rather than the trachea.
This finding, especially when combined with absent breath sounds and no CO2
detection, requires immediate tube removal and reattempted intubation.
,Question 7: For a patient in respiratory distress with adequate mental status, which
oxygen delivery device provides the HIGHEST concentration of oxygen?
A. Nasal cannula at 6 L/min
B. Simple face mask at 10 L/min
C. Non-rebreather mask at 15 L/min
D. Venturi mask at 24% FiO2
CORRECT ANSWER: C. Non-rebreather mask at 15 L/min
RATIONALE: A non-rebreather mask with a reservoir bag and one-way valves, when
properly fitted and flowing at 15 L/min, can deliver up to 90-95% FiO2, making it the
highest-concentration oxygen device available to EMT-I providers for patients who are
breathing spontaneously.
Question 8: Which anatomical landmark is used to estimate the correct insertion
depth for an oral endotracheal tube in an adult?
A. Cricoid cartilage
B. Tip of the nose to earlobe to xiphoid process
C. Incisors to vocal cords
D. Thyroid cartilage to sternal notch
CORRECT ANSWER: B. Tip of the nose to earlobe to xiphoid process
RATIONALE: The "NEX" measurement (nose to earlobe to xiphoid process) is a common
pre-intubation estimation technique for determining appropriate endotracheal tube
insertion depth in adults, typically resulting in 21-23 cm at the teeth for oral intubation,
reducing the risk of endobronchial placement.
Question 9: What is the recommended ventilation rate for an adult patient with a
supraglottic airway in place during cardiac arrest?
A. 8-10 breaths per minute
B. 10-12 breaths per minute
C. 12-15 breaths per minute
D. 20 breaths per minute
CORRECT ANSWER: B. 10-12 breaths per minute
RATIONALE: Current AHA guidelines recommend ventilating an adult patient with an
advanced airway (including supraglottic devices) during cardiac arrest at a rate of 10-12
breaths per minute (one breath every 5-6 seconds), while continuous chest
compressions are performed without pausing for ventilations.
Question 10: Which complication is MOST commonly associated with prolonged
bag-valve-mask ventilation?
A. Pneumothorax
B. Gastric distension
, C. Laryngospasm
D. Hypotension
CORRECT ANSWER: B. Gastric distension
RATIONALE: Prolonged or forceful bag-valve-mask ventilation can force air into the
stomach, causing gastric distension. This increases the risk of vomiting, aspiration, and
impaired diaphragmatic movement, emphasizing the need for proper ventilation
technique and early advanced airway placement when indicated.
Question 11: When using a laryngoscope with a Macintosh blade, where should the
tip of the blade be positioned to optimize glottic visualization?
A. Under the epiglottis
B. In the vallecula
C. Against the posterior pharyngeal wall
D. Between the vocal cords
CORRECT ANSWER: B. In the vallecula
RATIONALE: The Macintosh (curved) blade is designed to be placed in the vallecula, the
space between the base of the tongue and the epiglottis. Lifting the laryngoscope
handle upward and forward indirectly elevates the epiglottis, exposing the vocal cords
without directly contacting them.
Question 12: Which patient factor MOST significantly increases the difficulty of
endotracheal intubation?
A. Hypertension
B. Limited neck mobility
C. Tachycardia
D. Peripheral edema
CORRECT ANSWER: B. Limited neck mobility
RATIONALE: Limited neck mobility, due to trauma, arthritis, or anatomical variation,
severely restricts the ability to achieve the "sniffing position" required for optimal
laryngoscopy. This is a key predictor of difficult intubation and necessitates preparation
for alternative airway strategies.
Question 13: What is the PRIMARY indication for rapid sequence intubation (RSI) in
the prehospital setting?
A. Mild respiratory distress
B. Impending airway compromise with intact gag reflex
C. Cardiac arrest with ROSC
D. Stable asthma exacerbation
CORRECT ANSWER: B. Impending airway compromise with intact gag reflex
Complete Study Guide Updated 2026 | Verified Questions & Answers
with Detailed Rationales | Comprehensive Review of Advanced Patient
Assessment, Airway & Ventilation Management, Cardiac & Trauma
Emergencies, Pharmacology, IV Therapy, EMS Protocols, Safety &
Infection Control, & NCLEX-Style Clinical Scenarios
Question 1: Which of the following is the MOST appropriate initial airway
intervention for an unconscious adult patient with no suspected spinal injury?
A. Insertion of a supraglottic airway device
B. Head-tilt/chin-lift maneuver
C. Endotracheal intubation
D. Nasopharyngeal airway placement
CORRECT ANSWER: B. Head-tilt/chin-lift maneuver
RATIONALE: The head-tilt/chin-lift maneuver is the foundational, non-invasive
technique to open the airway in an unconscious patient without suspected cervical
spine trauma. It should always precede advanced airway interventions per EMT-I scope
of practice and national guidelines, ensuring basic airway patency before escalating
care.
Question 2: When performing endotracheal intubation, which confirmation method
is considered the MOST reliable in the prehospital setting?
A. Auscultation of bilateral breath sounds
B. Visualization of the tube passing through the vocal cords
C. Presence of condensation in the tube
D. Pulse oximetry reading above 95%
CORRECT ANSWER: B. Visualization of the tube passing through the vocal cords
RATIONALE: Direct visualization of the endotracheal tube passing through the vocal
cords is the gold standard for initial confirmation of correct tracheal placement. While
adjuncts like capnography and auscultation are critical for ongoing verification, visual
confirmation remains the most reliable single method during the intubation procedure
itself.
Question 3: A patient with severe facial trauma is unable to maintain their airway.
Which advanced airway device is CONTRAINDICATED in this scenario?
A. King LT-D supraglottic airway
B. Endotracheal tube via oral route
C. Nasopharyngeal airway
D. Combitube
CORRECT ANSWER: C. Nasopharyngeal airway
,RATIONALE: Nasopharyngeal airways are contraindicated in patients with severe facial
trauma, particularly involving the midface or basilar skull fracture, due to the risk of
intracranial insertion. Supraglottic devices or surgical airways are preferred when oral
intubation is not feasible in such trauma cases.
Question 4: Which medication is typically administered via the endotracheal tube
during cardiac arrest when IV/IO access is unavailable?
A. Amiodarone
B. Epinephrine
C. Atropine
D. Lidocaine
CORRECT ANSWER: B. Epinephrine
RATIONALE: Epinephrine is one of the few medications that can be administered via the
endotracheal route during cardiac arrest when IV/IO access is delayed or unobtainable.
The dose is typically 2-2.5 times the IV dose, diluted in 5-10 mL of sterile water or
normal saline, and followed by positive-pressure ventilations.
Question 5: What is the PRIMARY purpose of using a bougie during difficult
intubation?
A. To confirm end-tidal CO2 detection
B. To provide a guide for endotracheal tube placement
C. To suction secretions from the airway
D. To measure the depth of tube insertion
CORRECT ANSWER: B. To provide a guide for endotracheal tube placement
RATIONALE: A bougie (or gum elastic bougie) is a flexible introducer used to facilitate
endotracheal tube placement in difficult airways. It is advanced through the vocal cords
under direct or indirect visualization, and the endotracheal tube is then threaded over it
into the trachea, improving first-pass success rates.
Question 6: Which of the following is a sign of esophageal intubation?
A. Bilateral chest rise with ventilation
B. End-tidal CO2 waveform present
C. Epigastric sounds heard during ventilation
D. Improved oxygen saturation
CORRECT ANSWER: C. Epigastric sounds heard during ventilation
RATIONALE: Hearing gurgling or air sounds over the epigastrium during ventilation
strongly suggests the endotracheal tube is in the esophagus rather than the trachea.
This finding, especially when combined with absent breath sounds and no CO2
detection, requires immediate tube removal and reattempted intubation.
,Question 7: For a patient in respiratory distress with adequate mental status, which
oxygen delivery device provides the HIGHEST concentration of oxygen?
A. Nasal cannula at 6 L/min
B. Simple face mask at 10 L/min
C. Non-rebreather mask at 15 L/min
D. Venturi mask at 24% FiO2
CORRECT ANSWER: C. Non-rebreather mask at 15 L/min
RATIONALE: A non-rebreather mask with a reservoir bag and one-way valves, when
properly fitted and flowing at 15 L/min, can deliver up to 90-95% FiO2, making it the
highest-concentration oxygen device available to EMT-I providers for patients who are
breathing spontaneously.
Question 8: Which anatomical landmark is used to estimate the correct insertion
depth for an oral endotracheal tube in an adult?
A. Cricoid cartilage
B. Tip of the nose to earlobe to xiphoid process
C. Incisors to vocal cords
D. Thyroid cartilage to sternal notch
CORRECT ANSWER: B. Tip of the nose to earlobe to xiphoid process
RATIONALE: The "NEX" measurement (nose to earlobe to xiphoid process) is a common
pre-intubation estimation technique for determining appropriate endotracheal tube
insertion depth in adults, typically resulting in 21-23 cm at the teeth for oral intubation,
reducing the risk of endobronchial placement.
Question 9: What is the recommended ventilation rate for an adult patient with a
supraglottic airway in place during cardiac arrest?
A. 8-10 breaths per minute
B. 10-12 breaths per minute
C. 12-15 breaths per minute
D. 20 breaths per minute
CORRECT ANSWER: B. 10-12 breaths per minute
RATIONALE: Current AHA guidelines recommend ventilating an adult patient with an
advanced airway (including supraglottic devices) during cardiac arrest at a rate of 10-12
breaths per minute (one breath every 5-6 seconds), while continuous chest
compressions are performed without pausing for ventilations.
Question 10: Which complication is MOST commonly associated with prolonged
bag-valve-mask ventilation?
A. Pneumothorax
B. Gastric distension
, C. Laryngospasm
D. Hypotension
CORRECT ANSWER: B. Gastric distension
RATIONALE: Prolonged or forceful bag-valve-mask ventilation can force air into the
stomach, causing gastric distension. This increases the risk of vomiting, aspiration, and
impaired diaphragmatic movement, emphasizing the need for proper ventilation
technique and early advanced airway placement when indicated.
Question 11: When using a laryngoscope with a Macintosh blade, where should the
tip of the blade be positioned to optimize glottic visualization?
A. Under the epiglottis
B. In the vallecula
C. Against the posterior pharyngeal wall
D. Between the vocal cords
CORRECT ANSWER: B. In the vallecula
RATIONALE: The Macintosh (curved) blade is designed to be placed in the vallecula, the
space between the base of the tongue and the epiglottis. Lifting the laryngoscope
handle upward and forward indirectly elevates the epiglottis, exposing the vocal cords
without directly contacting them.
Question 12: Which patient factor MOST significantly increases the difficulty of
endotracheal intubation?
A. Hypertension
B. Limited neck mobility
C. Tachycardia
D. Peripheral edema
CORRECT ANSWER: B. Limited neck mobility
RATIONALE: Limited neck mobility, due to trauma, arthritis, or anatomical variation,
severely restricts the ability to achieve the "sniffing position" required for optimal
laryngoscopy. This is a key predictor of difficult intubation and necessitates preparation
for alternative airway strategies.
Question 13: What is the PRIMARY indication for rapid sequence intubation (RSI) in
the prehospital setting?
A. Mild respiratory distress
B. Impending airway compromise with intact gag reflex
C. Cardiac arrest with ROSC
D. Stable asthma exacerbation
CORRECT ANSWER: B. Impending airway compromise with intact gag reflex
