EMT-B Emergency Medical Technician Basic Exam Prep – Practice
Questions, Answers & Detailed Rationales (Updated 2026) |
Patient Assessment (Primary & Secondary Survey), Airway Management
& Oxygen Therapy, Trauma Care & Bleeding Control, Medical Emergencies
(Cardiac, Respiratory, Neurological), CPR & AED Use, Shock Management,
EMS Operations, Pediatric & Geriatric Care, NREMT-Style Scenarios
Question 1: What is the primary purpose of the primary assessment in emergency
medical care?
A. To obtain a complete medical history from the patient
B. To identify and treat immediately life-threatening conditions
C. To document all patient complaints for hospital transfer
D. To determine the mechanism of injury in trauma cases
CORRECT ANSWER: B. To identify and treat immediately life-threatening conditions
Rationale: The primary assessment is designed to rapidly identify and manage
conditions that pose an immediate threat to life, such as airway obstruction,
inadequate breathing, or severe bleeding. This systematic approach follows the ABCs
(Airway, Breathing, Circulation) to ensure critical interventions are performed without
delay before proceeding to secondary assessment.
Question 2: Which of the following is the correct compression-to-ventilation ratio
for adult CPR performed by a single rescuer?
A. 15:2
B. 30:2
C. 5:1
D. 20:2
CORRECT ANSWER: B. 30:2
Rationale: According to current American Heart Association guidelines, the
recommended compression-to-ventilation ratio for adult CPR by a single rescuer is 30
compressions to 2 ventilations. This ratio optimizes blood flow while providing adequate
oxygenation and is consistent across basic life support protocols for healthcare
providers and lay rescuers.
Question 3: A patient presents with difficulty breathing, wheezing, and hives after
eating peanuts. Which medication is an EMT-Basic authorized to administer for this
condition?
A. Albuterol via nebulizer
B. Epinephrine via auto-injector
C. Nitroglycerin sublingually
D. Aspirin orally
CORRECT ANSWER: B. Epinephrine via auto-injector
,Rationale: EMT-Basics are authorized to assist patients with prescribed epinephrine
auto-injectors for severe allergic reactions (anaphylaxis). Epinephrine is the first-line
treatment for anaphylaxis as it rapidly reverses bronchospasm, vasodilation, and
increased vascular permeability. Albuterol administration typically requires advanced
certification, while nitroglycerin and aspirin are indicated for cardiac conditions.
Question 4: What is the normal respiratory rate range for a healthy adult?
A. 8-12 breaths per minute
B. 12-20 breaths per minute
C. 20-30 breaths per minute
D. 30-40 breaths per minute
CORRECT ANSWER: B. 12-20 breaths per minute
Rationale: The normal respiratory rate for a healthy adult at rest is 12-20 breaths per
minute. Rates outside this range may indicate respiratory distress, metabolic
disturbances, or other pathological conditions. EMTs must accurately assess
respiratory rate as part of the primary assessment to identify patients requiring
immediate intervention.
Question 5: Which of the following best describes the purpose of the SAMPLE
history?
A. To assess the patient's level of consciousness using AVPU
B. To gather essential patient information during the secondary assessment
C. To determine the mechanism of injury in trauma patients
D. To evaluate the effectiveness of interventions performed
CORRECT ANSWER: B. To gather essential patient information during the secondary
assessment
Rationale: SAMPLE is a mnemonic used during the secondary assessment to obtain a
focused patient history: Signs/Symptoms, Allergies, Medications, Past medical history,
Last oral intake, and Events leading to the incident. This systematic approach helps
EMTs identify underlying conditions and guide appropriate treatment decisions.
Question 6: When using a bag-valve-mask device on an adult patient, what is the
recommended volume of air to deliver with each ventilation?
A. 200-300 mL
B. 400-500 mL
C. 600-700 mL
D. 800-1000 mL
CORRECT ANSWER: C. 600-700 mL
Rationale: The recommended tidal volume for adult bag-valve-mask ventilation is
approximately 600-700 mL, which should produce visible chest rise without
overinflation. Delivering excessive volumes can cause gastric distension, regurgitation,
,and decreased cardiac output. EMTs must practice proper technique to achieve
adequate ventilation while minimizing complications.
Question 7: A patient with chest pain is prescribed nitroglycerin. Which of the
following is a contraindication to administering nitroglycerin?
A. Systolic blood pressure less than 90 mmHg
B. Heart rate greater than 100 beats per minute
C. Patient reports headache after previous dose
D. Patient has taken one dose already
CORRECT ANSWER: A. Systolic blood pressure less than 90 mmHg
Rationale: Nitroglycerin is contraindicated when systolic blood pressure is below 90
mmHg because it causes vasodilation and can further reduce blood pressure,
potentially leading to shock. EMTs must assess blood pressure before administration
and follow medical direction protocols. Headache is a common side effect but not a
contraindication, and patients may take up to three doses as prescribed.
Question 8: Which of the following is the most reliable indicator of adequate
ventilation in a spontaneously breathing patient?
A. Pulse oximetry reading of 95% or higher
B. Presence of bilateral breath sounds
C. Normal skin color and temperature
D. Patient's ability to speak in full sentences
CORRECT ANSWER: B. Presence of bilateral breath sounds
Rationale: Bilateral breath sounds confirm that air is entering both lungs adequately,
which is the most direct assessment of ventilation effectiveness. While pulse oximetry,
skin signs, and speech ability provide supportive information, they can be influenced by
other factors and may not immediately reflect ventilation status. EMTs should
auscultate breath sounds during primary assessment.
Question 9: What is the first step in managing a patient with severe external
bleeding?
A. Apply a tourniquet proximal to the injury
B. Elevate the extremity above the level of the heart
C. Apply direct pressure with a sterile dressing
D. Pack the wound with hemostatic gauze
CORRECT ANSWER: C. Apply direct pressure with a sterile dressing
Rationale: Direct pressure with a sterile dressing is the initial intervention for
controlling external bleeding as recommended by current trauma protocols. This
method is effective for most bleeding sources and minimizes tissue damage.
Tourniquets are reserved for life-threatening extremity hemorrhage uncontrolled by
direct pressure, while elevation and hemostatic agents are adjunctive measures.
, Question 10: Which anatomical structure is primarily responsible for gas exchange
in the lungs?
A. Bronchi
B. Trachea
C. Alveoli
D. Pleura
CORRECT ANSWER: C. Alveoli
Rationale: The alveoli are tiny air sacs in the lungs where oxygen and carbon dioxide
exchange occurs between the air and pulmonary capillaries. Their thin walls and
extensive capillary network maximize diffusion efficiency. Understanding this anatomy
helps EMTs recognize how conditions like pulmonary edema or pneumonia impair
oxygenation.
Question 11: A patient is found unresponsive with no normal breathing and no
pulse. What is the immediate action an EMT should take?
A. Begin rescue breathing at 10-12 breaths per minute
B. Start chest compressions immediately
C. Apply an AED and analyze rhythm
D. Check for a medical alert bracelet
CORRECT ANSWER: B. Start chest compressions immediately
Rationale: For an unresponsive patient with no normal breathing and no pulse,
immediate high-quality chest compressions are critical to maintain circulation to vital
organs. Current guidelines emphasize "CAB" (Compressions, Airway, Breathing)
sequence, with compressions initiated before airway management or AED application
to minimize delays in perfusion.
Question 12: Which of the following signs is most indicative of shock in a trauma
patient?
A. Bradycardia
B. Hypertension
C. Tachycardia with weak peripheral pulses
D. Flushed, warm skin
CORRECT ANSWER: C. Tachycardia with weak peripheral pulses
Rationale: Tachycardia with weak peripheral pulses is an early sign of compensatory
shock as the body attempts to maintain cardiac output. Hypotension is a late sign.
Bradycardia, hypertension, and warm skin are not typical of hypovolemic or traumatic
shock. EMTs must recognize early shock indicators to initiate rapid transport and
interventions.
Question 13: What is the appropriate suction time limit for an adult patient during
airway management?
Questions, Answers & Detailed Rationales (Updated 2026) |
Patient Assessment (Primary & Secondary Survey), Airway Management
& Oxygen Therapy, Trauma Care & Bleeding Control, Medical Emergencies
(Cardiac, Respiratory, Neurological), CPR & AED Use, Shock Management,
EMS Operations, Pediatric & Geriatric Care, NREMT-Style Scenarios
Question 1: What is the primary purpose of the primary assessment in emergency
medical care?
A. To obtain a complete medical history from the patient
B. To identify and treat immediately life-threatening conditions
C. To document all patient complaints for hospital transfer
D. To determine the mechanism of injury in trauma cases
CORRECT ANSWER: B. To identify and treat immediately life-threatening conditions
Rationale: The primary assessment is designed to rapidly identify and manage
conditions that pose an immediate threat to life, such as airway obstruction,
inadequate breathing, or severe bleeding. This systematic approach follows the ABCs
(Airway, Breathing, Circulation) to ensure critical interventions are performed without
delay before proceeding to secondary assessment.
Question 2: Which of the following is the correct compression-to-ventilation ratio
for adult CPR performed by a single rescuer?
A. 15:2
B. 30:2
C. 5:1
D. 20:2
CORRECT ANSWER: B. 30:2
Rationale: According to current American Heart Association guidelines, the
recommended compression-to-ventilation ratio for adult CPR by a single rescuer is 30
compressions to 2 ventilations. This ratio optimizes blood flow while providing adequate
oxygenation and is consistent across basic life support protocols for healthcare
providers and lay rescuers.
Question 3: A patient presents with difficulty breathing, wheezing, and hives after
eating peanuts. Which medication is an EMT-Basic authorized to administer for this
condition?
A. Albuterol via nebulizer
B. Epinephrine via auto-injector
C. Nitroglycerin sublingually
D. Aspirin orally
CORRECT ANSWER: B. Epinephrine via auto-injector
,Rationale: EMT-Basics are authorized to assist patients with prescribed epinephrine
auto-injectors for severe allergic reactions (anaphylaxis). Epinephrine is the first-line
treatment for anaphylaxis as it rapidly reverses bronchospasm, vasodilation, and
increased vascular permeability. Albuterol administration typically requires advanced
certification, while nitroglycerin and aspirin are indicated for cardiac conditions.
Question 4: What is the normal respiratory rate range for a healthy adult?
A. 8-12 breaths per minute
B. 12-20 breaths per minute
C. 20-30 breaths per minute
D. 30-40 breaths per minute
CORRECT ANSWER: B. 12-20 breaths per minute
Rationale: The normal respiratory rate for a healthy adult at rest is 12-20 breaths per
minute. Rates outside this range may indicate respiratory distress, metabolic
disturbances, or other pathological conditions. EMTs must accurately assess
respiratory rate as part of the primary assessment to identify patients requiring
immediate intervention.
Question 5: Which of the following best describes the purpose of the SAMPLE
history?
A. To assess the patient's level of consciousness using AVPU
B. To gather essential patient information during the secondary assessment
C. To determine the mechanism of injury in trauma patients
D. To evaluate the effectiveness of interventions performed
CORRECT ANSWER: B. To gather essential patient information during the secondary
assessment
Rationale: SAMPLE is a mnemonic used during the secondary assessment to obtain a
focused patient history: Signs/Symptoms, Allergies, Medications, Past medical history,
Last oral intake, and Events leading to the incident. This systematic approach helps
EMTs identify underlying conditions and guide appropriate treatment decisions.
Question 6: When using a bag-valve-mask device on an adult patient, what is the
recommended volume of air to deliver with each ventilation?
A. 200-300 mL
B. 400-500 mL
C. 600-700 mL
D. 800-1000 mL
CORRECT ANSWER: C. 600-700 mL
Rationale: The recommended tidal volume for adult bag-valve-mask ventilation is
approximately 600-700 mL, which should produce visible chest rise without
overinflation. Delivering excessive volumes can cause gastric distension, regurgitation,
,and decreased cardiac output. EMTs must practice proper technique to achieve
adequate ventilation while minimizing complications.
Question 7: A patient with chest pain is prescribed nitroglycerin. Which of the
following is a contraindication to administering nitroglycerin?
A. Systolic blood pressure less than 90 mmHg
B. Heart rate greater than 100 beats per minute
C. Patient reports headache after previous dose
D. Patient has taken one dose already
CORRECT ANSWER: A. Systolic blood pressure less than 90 mmHg
Rationale: Nitroglycerin is contraindicated when systolic blood pressure is below 90
mmHg because it causes vasodilation and can further reduce blood pressure,
potentially leading to shock. EMTs must assess blood pressure before administration
and follow medical direction protocols. Headache is a common side effect but not a
contraindication, and patients may take up to three doses as prescribed.
Question 8: Which of the following is the most reliable indicator of adequate
ventilation in a spontaneously breathing patient?
A. Pulse oximetry reading of 95% or higher
B. Presence of bilateral breath sounds
C. Normal skin color and temperature
D. Patient's ability to speak in full sentences
CORRECT ANSWER: B. Presence of bilateral breath sounds
Rationale: Bilateral breath sounds confirm that air is entering both lungs adequately,
which is the most direct assessment of ventilation effectiveness. While pulse oximetry,
skin signs, and speech ability provide supportive information, they can be influenced by
other factors and may not immediately reflect ventilation status. EMTs should
auscultate breath sounds during primary assessment.
Question 9: What is the first step in managing a patient with severe external
bleeding?
A. Apply a tourniquet proximal to the injury
B. Elevate the extremity above the level of the heart
C. Apply direct pressure with a sterile dressing
D. Pack the wound with hemostatic gauze
CORRECT ANSWER: C. Apply direct pressure with a sterile dressing
Rationale: Direct pressure with a sterile dressing is the initial intervention for
controlling external bleeding as recommended by current trauma protocols. This
method is effective for most bleeding sources and minimizes tissue damage.
Tourniquets are reserved for life-threatening extremity hemorrhage uncontrolled by
direct pressure, while elevation and hemostatic agents are adjunctive measures.
, Question 10: Which anatomical structure is primarily responsible for gas exchange
in the lungs?
A. Bronchi
B. Trachea
C. Alveoli
D. Pleura
CORRECT ANSWER: C. Alveoli
Rationale: The alveoli are tiny air sacs in the lungs where oxygen and carbon dioxide
exchange occurs between the air and pulmonary capillaries. Their thin walls and
extensive capillary network maximize diffusion efficiency. Understanding this anatomy
helps EMTs recognize how conditions like pulmonary edema or pneumonia impair
oxygenation.
Question 11: A patient is found unresponsive with no normal breathing and no
pulse. What is the immediate action an EMT should take?
A. Begin rescue breathing at 10-12 breaths per minute
B. Start chest compressions immediately
C. Apply an AED and analyze rhythm
D. Check for a medical alert bracelet
CORRECT ANSWER: B. Start chest compressions immediately
Rationale: For an unresponsive patient with no normal breathing and no pulse,
immediate high-quality chest compressions are critical to maintain circulation to vital
organs. Current guidelines emphasize "CAB" (Compressions, Airway, Breathing)
sequence, with compressions initiated before airway management or AED application
to minimize delays in perfusion.
Question 12: Which of the following signs is most indicative of shock in a trauma
patient?
A. Bradycardia
B. Hypertension
C. Tachycardia with weak peripheral pulses
D. Flushed, warm skin
CORRECT ANSWER: C. Tachycardia with weak peripheral pulses
Rationale: Tachycardia with weak peripheral pulses is an early sign of compensatory
shock as the body attempts to maintain cardiac output. Hypotension is a late sign.
Bradycardia, hypertension, and warm skin are not typical of hypovolemic or traumatic
shock. EMTs must recognize early shock indicators to initiate rapid transport and
interventions.
Question 13: What is the appropriate suction time limit for an adult patient during
airway management?
