EMT-B – Emergency Medical Technician Basic
Certification Exam 2026/2027 Study Guide |
EMT Basic Exam Prep & NREMT Review |
Practice Questions & Answers, Detailed
Rationales, Patient Assessment, Airway &
Breathing, Trauma, Medical Emergencies,
Cardiac Care, Shock, EMS Operations &
Clinical Decision-Making
Question 1: What is the first action an EMT-B should take upon arriving at the
scene of a potential hazardous materials incident?
A. Begin triage of patients
B. Don personal protective equipment
C. Establish a safe zone and stage upwind
D. Request additional resources
CORRECT ANSWER: C. Establish a safe zone and stage upwind
Rationale: The immediate priority at a hazardous materials scene is scene safety. The
EMT-B must ensure their own safety first by establishing a safe zone, staging upwind
and uphill from the incident. This prevents the rescuer from becoming a casualty and
allows for proper assessment and resource request.
Question 2: A patient with a history of emphysema is breathing 28 times per
minute with shallow respirations. What is the most appropriate initial action
for the EMT-B?
A. Apply a non-rebreather mask at 15 L/min
B. Initiate positive pressure ventilation with a BVM
C. Place the patient in a prone position
D. Administer oral glucose
CORRECT ANSWER: B. Initiate positive pressure ventilation with a BVM
Rationale: The patient is exhibiting tachypnea with shallow respirations, indicating
inadequate tidal volume and respiratory failure. The EMT-B must assist ventilations with
a bag-valve-mask (BVM) to support breathing. Supplemental oxygen alone is insufficient
if the patient cannot move air effectively.
Question 3: Which of the following is a sign of inadequate breathing in an
infant?
A. Respiratory rate of 30 breaths per minute
B. Acrocyanosis of the hands and feet
C. Expiratory grunting
D. Heart rate of 160 beats per minute
,CORRECT ANSWER: C. Expiratory grunting
Rationale: Expiratory grunting is a significant sign of respiratory distress in infants and
children, indicating the body's attempt to maintain functional residual capacity and keep
alveoli open. A rate of 30 is normal for an infant, acrocyanosis is often normal in
newborns, and a heart rate of 160 is within normal limits for a crying infant.
Question 4: The EMT-B is assessing a 45-year-old patient with chest pain.
Which finding is most indicative of a cardiac origin?
A. Sharp pain that worsens with deep inspiration
B. Pain relieved by leaning forward
C. Crushing pressure radiating to the jaw
D. Tenderness upon palpation of the chest wall
CORRECT ANSWER: C. Crushing pressure radiating to the jaw
Rationale: Crushing or squeezing chest pressure that radiates to the jaw, neck, or left
arm is a classic presentation of cardiac ischemia or myocardial infarction. Pleuritic pain
(worsens with inspiration) or pain relieved by leaning forward suggests pericarditis,
while tenderness indicates a musculoskeletal issue.
Question 5: What is the primary purpose of the "recovery position" for an
unresponsive patient with a suspected spinal injury?
A. To keep the airway open and allow fluids to drain
B. To provide spinal immobilization
C. To maintain a neutral, inline position
D. To improve circulation to the brain
CORRECT ANSWER: A. To keep the airway open and allow fluids to drain
Rationale: The recovery position (HAINES or lateral recumbent) is used primarily to
maintain a patent airway and allow vomit or secretions to drain from the mouth,
reducing the risk of aspiration. It does not provide spinal immobilization; a neutral inline
position is used for spinal precautions.
Question 6: A 60-year-old diabetic patient is found unresponsive. Which of the
following findings would support a diagnosis of hypoglycemia over
hyperglycemia?
A. Deep, rapid respirations
B. Hot, dry skin
C. Blood glucose of 45 mg/dL
D. Fruity odor on the breath
CORRECT ANSWER: C. Blood glucose of 45 mg/dL
Rationale: A blood glucose level of 45 mg/dL is significantly below the normal range
(70-120 mg/dL), indicating hypoglycemia. Hypoglycemia typically presents with cool,
,clammy skin, while hyperglycemia (DKA) presents with hot, dry skin, fruity breath, and
Kussmaul respirations.
Question 7: What is the proper compression-to-ventilation ratio for a single
rescuer performing CPR on an adult?
A. 15:2
B. 30:2
C. 5:1
D. 15:1
CORRECT ANSWER: B. 30:2
Rationale: According to current AHA guidelines, the recommended compression-to-
ventilation ratio for a single rescuer performing CPR on an adult is 30 compressions to 2
ventilations. This prioritizes high-quality chest compressions to maximize coronary
perfusion pressure.
Question 8: When using a nasopharyngeal airway (NPA), which of the
following is a critical contraindication?
A. Suspected fractured mandible
B. Patient is conscious
C. Suspected basilar skull fracture
D. Patient is under 8 years old
CORRECT ANSWER: C. Suspected basilar skull fracture
Rationale: An NPA is contraindicated in patients with suspected basilar skull fracture
(signs include Battle's sign, raccoon eyes, or CSF otorrhea/rhinorrhea) due to the risk of
inserting the airway into the cranial cavity through a fracture. A fractured mandible is
not a contraindication for NPA.
Question 9: A patient has suffered a partial-thickness burn to the entire
anterior chest and the entire anterior surface of the right arm. Using the Rule
of Nines, what is the estimated body surface area (BSA) affected?
A. 13.5%
B. 18%
C. 22.5%
D. 27%
CORRECT ANSWER: C. 22.5%
Rationale: The anterior chest is 9% (front of the torso is 18%, half is 9%). The anterior
surface of one arm is 4.5% (total arm is 9%, half is 4.5%). Total BSA = 9% + 4.5% =
13.5%. (Wait, the math yields 13.5%, I need to recalculate. Anterior chest is 9%, anterior
arm is 4.5%. Total = 13.5%. Let me correct: If the patient is an adult, the anterior torso is
18%, so anterior chest would be roughly 9%. The arm is 9%, so anterior is 4.5%. Total is
13.5%. My calculation is 13.5%. Let me ensure the answer: 13.5%). I will adjust.
, CORRECT ANSWER: A. 13.5%
Rationale: Using the Rule of Nines, the anterior chest constitutes 9% of total BSA. The
anterior surface of one arm is half of the arm's total (9%), which equals 4.5%. The total
affected area is 9% + 4.5% = 13.5%.
Question 10: Which of the following clinical signs is most consistent with a
tension pneumothorax?
A. Diminished breath sounds on the affected side and tracheal deviation toward the
affected side
B. Hyperresonance on percussion and tracheal deviation away from the affected side
C. Bilateral crackles and wheezing
D. Jugular venous distention and muffled heart sounds
CORRECT ANSWER: B. Hyperresonance on percussion and tracheal deviation
away from the affected side
Rationale: A tension pneumothorax causes air to accumulate in the pleural space,
leading to increased pressure that shifts the mediastinum. This results in
hyperresonance on percussion, diminished (not absent) breath sounds, and tracheal
deviation away from the affected side. JVD may be present due to decreased venous
return.
Question 11: What is the primary function of platelets in the hemostasis
process?
A. Carry oxygen to the tissues
B. Form a fibrin mesh to trap red blood cells
C. Initiate the coagulation cascade
D. Aggregrate at the injury site to form a plug
CORRECT ANSWER: D. Aggregrate at the injury site to form a plug
Rationale: Platelets adhere to the exposed collagen at an injury site and aggregate to
form a temporary platelet plug (primary hemostasis). The coagulation cascade
(involving clotting factors) produces fibrin to stabilize the plug.
Question 12: A patient presents with a deep laceration to the lower leg. The
EMT-B notes bright red blood spurting from the wound. What type of bleeding
is this?
A. Venous bleeding
B. Capillary bleeding
C. Arterial bleeding
D. Intracranial bleeding
CORRECT ANSWER: C. Arterial bleeding
Certification Exam 2026/2027 Study Guide |
EMT Basic Exam Prep & NREMT Review |
Practice Questions & Answers, Detailed
Rationales, Patient Assessment, Airway &
Breathing, Trauma, Medical Emergencies,
Cardiac Care, Shock, EMS Operations &
Clinical Decision-Making
Question 1: What is the first action an EMT-B should take upon arriving at the
scene of a potential hazardous materials incident?
A. Begin triage of patients
B. Don personal protective equipment
C. Establish a safe zone and stage upwind
D. Request additional resources
CORRECT ANSWER: C. Establish a safe zone and stage upwind
Rationale: The immediate priority at a hazardous materials scene is scene safety. The
EMT-B must ensure their own safety first by establishing a safe zone, staging upwind
and uphill from the incident. This prevents the rescuer from becoming a casualty and
allows for proper assessment and resource request.
Question 2: A patient with a history of emphysema is breathing 28 times per
minute with shallow respirations. What is the most appropriate initial action
for the EMT-B?
A. Apply a non-rebreather mask at 15 L/min
B. Initiate positive pressure ventilation with a BVM
C. Place the patient in a prone position
D. Administer oral glucose
CORRECT ANSWER: B. Initiate positive pressure ventilation with a BVM
Rationale: The patient is exhibiting tachypnea with shallow respirations, indicating
inadequate tidal volume and respiratory failure. The EMT-B must assist ventilations with
a bag-valve-mask (BVM) to support breathing. Supplemental oxygen alone is insufficient
if the patient cannot move air effectively.
Question 3: Which of the following is a sign of inadequate breathing in an
infant?
A. Respiratory rate of 30 breaths per minute
B. Acrocyanosis of the hands and feet
C. Expiratory grunting
D. Heart rate of 160 beats per minute
,CORRECT ANSWER: C. Expiratory grunting
Rationale: Expiratory grunting is a significant sign of respiratory distress in infants and
children, indicating the body's attempt to maintain functional residual capacity and keep
alveoli open. A rate of 30 is normal for an infant, acrocyanosis is often normal in
newborns, and a heart rate of 160 is within normal limits for a crying infant.
Question 4: The EMT-B is assessing a 45-year-old patient with chest pain.
Which finding is most indicative of a cardiac origin?
A. Sharp pain that worsens with deep inspiration
B. Pain relieved by leaning forward
C. Crushing pressure radiating to the jaw
D. Tenderness upon palpation of the chest wall
CORRECT ANSWER: C. Crushing pressure radiating to the jaw
Rationale: Crushing or squeezing chest pressure that radiates to the jaw, neck, or left
arm is a classic presentation of cardiac ischemia or myocardial infarction. Pleuritic pain
(worsens with inspiration) or pain relieved by leaning forward suggests pericarditis,
while tenderness indicates a musculoskeletal issue.
Question 5: What is the primary purpose of the "recovery position" for an
unresponsive patient with a suspected spinal injury?
A. To keep the airway open and allow fluids to drain
B. To provide spinal immobilization
C. To maintain a neutral, inline position
D. To improve circulation to the brain
CORRECT ANSWER: A. To keep the airway open and allow fluids to drain
Rationale: The recovery position (HAINES or lateral recumbent) is used primarily to
maintain a patent airway and allow vomit or secretions to drain from the mouth,
reducing the risk of aspiration. It does not provide spinal immobilization; a neutral inline
position is used for spinal precautions.
Question 6: A 60-year-old diabetic patient is found unresponsive. Which of the
following findings would support a diagnosis of hypoglycemia over
hyperglycemia?
A. Deep, rapid respirations
B. Hot, dry skin
C. Blood glucose of 45 mg/dL
D. Fruity odor on the breath
CORRECT ANSWER: C. Blood glucose of 45 mg/dL
Rationale: A blood glucose level of 45 mg/dL is significantly below the normal range
(70-120 mg/dL), indicating hypoglycemia. Hypoglycemia typically presents with cool,
,clammy skin, while hyperglycemia (DKA) presents with hot, dry skin, fruity breath, and
Kussmaul respirations.
Question 7: What is the proper compression-to-ventilation ratio for a single
rescuer performing CPR on an adult?
A. 15:2
B. 30:2
C. 5:1
D. 15:1
CORRECT ANSWER: B. 30:2
Rationale: According to current AHA guidelines, the recommended compression-to-
ventilation ratio for a single rescuer performing CPR on an adult is 30 compressions to 2
ventilations. This prioritizes high-quality chest compressions to maximize coronary
perfusion pressure.
Question 8: When using a nasopharyngeal airway (NPA), which of the
following is a critical contraindication?
A. Suspected fractured mandible
B. Patient is conscious
C. Suspected basilar skull fracture
D. Patient is under 8 years old
CORRECT ANSWER: C. Suspected basilar skull fracture
Rationale: An NPA is contraindicated in patients with suspected basilar skull fracture
(signs include Battle's sign, raccoon eyes, or CSF otorrhea/rhinorrhea) due to the risk of
inserting the airway into the cranial cavity through a fracture. A fractured mandible is
not a contraindication for NPA.
Question 9: A patient has suffered a partial-thickness burn to the entire
anterior chest and the entire anterior surface of the right arm. Using the Rule
of Nines, what is the estimated body surface area (BSA) affected?
A. 13.5%
B. 18%
C. 22.5%
D. 27%
CORRECT ANSWER: C. 22.5%
Rationale: The anterior chest is 9% (front of the torso is 18%, half is 9%). The anterior
surface of one arm is 4.5% (total arm is 9%, half is 4.5%). Total BSA = 9% + 4.5% =
13.5%. (Wait, the math yields 13.5%, I need to recalculate. Anterior chest is 9%, anterior
arm is 4.5%. Total = 13.5%. Let me correct: If the patient is an adult, the anterior torso is
18%, so anterior chest would be roughly 9%. The arm is 9%, so anterior is 4.5%. Total is
13.5%. My calculation is 13.5%. Let me ensure the answer: 13.5%). I will adjust.
, CORRECT ANSWER: A. 13.5%
Rationale: Using the Rule of Nines, the anterior chest constitutes 9% of total BSA. The
anterior surface of one arm is half of the arm's total (9%), which equals 4.5%. The total
affected area is 9% + 4.5% = 13.5%.
Question 10: Which of the following clinical signs is most consistent with a
tension pneumothorax?
A. Diminished breath sounds on the affected side and tracheal deviation toward the
affected side
B. Hyperresonance on percussion and tracheal deviation away from the affected side
C. Bilateral crackles and wheezing
D. Jugular venous distention and muffled heart sounds
CORRECT ANSWER: B. Hyperresonance on percussion and tracheal deviation
away from the affected side
Rationale: A tension pneumothorax causes air to accumulate in the pleural space,
leading to increased pressure that shifts the mediastinum. This results in
hyperresonance on percussion, diminished (not absent) breath sounds, and tracheal
deviation away from the affected side. JVD may be present due to decreased venous
return.
Question 11: What is the primary function of platelets in the hemostasis
process?
A. Carry oxygen to the tissues
B. Form a fibrin mesh to trap red blood cells
C. Initiate the coagulation cascade
D. Aggregrate at the injury site to form a plug
CORRECT ANSWER: D. Aggregrate at the injury site to form a plug
Rationale: Platelets adhere to the exposed collagen at an injury site and aggregate to
form a temporary platelet plug (primary hemostasis). The coagulation cascade
(involving clotting factors) produces fibrin to stabilize the plug.
Question 12: A patient presents with a deep laceration to the lower leg. The
EMT-B notes bright red blood spurting from the wound. What type of bleeding
is this?
A. Venous bleeding
B. Capillary bleeding
C. Arterial bleeding
D. Intracranial bleeding
CORRECT ANSWER: C. Arterial bleeding
