Exam Comprehensive Study Guide | 150+ Practice Questions
with Verified Answers and Detailed Rationales | Airway
Assessment, Oxygen Therapy, Ventilation Techniques, BVM
Use, Suctioning, Advanced Airways, and EMT Clinical
Decision-Making
Question 1:
What is the first step in airway management for an unresponsive patient?
A. Insert an oropharyngeal airway
B. Perform the Heimlich maneuver
C. Provide supplemental oxygen
D. Assess for signs of airway obstruction
Correct Option: D. Assess for signs of airway obstruction
Rationale: Assessing for signs of airway obstruction is crucial as it determines if
immediate intervention is necessary. It's important to establish whether the airway is
clear before proceeding with any other actions.
Question 2:
Which device is most appropriate for delivering oxygen to a patient who is
breathing adequately but has low oxygen saturation?
A. Nasal cannula
B. Non-rebreather mask
C. Bag-valve mask
D. Simple face mask
Correct Option: B. Non-rebreather mask
Rationale: A non-rebreather mask is ideal in situations where high concentrations of
oxygen are required, particularly for patients with low saturation but adequate
respiratory effort. It can deliver close to 100% oxygen, making it effective in critical
scenarios.
Question 3:
During intubation, what is the main purpose of using a laryngoscope?
A. To inflate the endotracheal tube
B. To visualize the vocal cords
C. To administer medications
D. To open the airway
,Correct Option: B. To visualize the vocal cords
Rationale: The laryngoscope allows for direct visualization of the vocal cords, which is
essential for correct placement of the endotracheal tube in the trachea. Proper
visualization ensures that the tube is placed correctly to secure the airway.
Question 4:
What is the primary function of the bag-valve-mask (BVM) device?
A. To provide positive pressure ventilation
B. To deliver nebulized medications
C. To secure an airway
D. To assist in suctioning
Correct Option: A. To provide positive pressure ventilation
Rationale: The BVM is specifically designed to deliver positive pressure ventilation to
patients who cannot breathe adequately on their own. It ensures that oxygen is
delivered effectively, especially in cases of respiratory failure.
Question 5:
In which situation would you most likely use an oropharyngeal airway?
A. In a patient with a strong gag reflex
B. In an unresponsive patient without a gag reflex
C. In conscious patients
D. In patients with suspected spinal injuries
Correct Option: B. In an unresponsive patient without a gag reflex
Rationale: An oropharyngeal airway is indicated for unresponsive patients who do not
have a gag reflex, as it prevents the tongue from obstructing the airway. It should not be
used in conscious patients due to the risk of inducing vomiting.
Question 6:
What adjustment is made to a bag-valve-mask device when ventilating a patient
with a suspected spinal injury?
A. Increase the oxygen flow
B. Use a smaller mask
C. Maintain neutral head position
D. Apply more pressure
Correct Option: C. Maintain neutral head position
,Rationale: Maintaining a neutral head position is essential in patients with suspected
spinal injuries to prevent further damage while securing the airway and providing
ventilation.
Question 7:
What is the best indicator of effective bag-valve-mask ventilation?
A. Visible chest rise
B. Improvement in patient’s oxygen saturation
C. Absence of breath sounds
D. Presence of lung sounds
Correct Option: B. Improvement in patient’s oxygen saturation
Rationale: The primary goal of BVM ventilation is to improve oxygen saturation, which
reflects adequate ventilation. Visible chest rise is important, but the saturation directly
measures the effectiveness of oxygen delivery.
Question 8:
Which condition can be treated with a positve pressure airway?
A. Severe allergic reaction
B. Pulmonary embolism
C. Myocardial infarction
D. Respiratory failure
Correct Option: D. Respiratory failure
Rationale: Positive pressure ventilation is specifically utilized to support patients
experiencing respiratory failure, ensuring oxygen is delivered when the patient cannot
ventilate effectively.
Question 9:
What is the purpose of high-flow nasal cannula therapy?
A. To provide 100% oxygen
B. To humidify oxygen
C. To assist in medication delivery
D. To deliver continuous positive airway pressure
Correct Option: D. To deliver continuous positive airway pressure
, Rationale: High-flow nasal cannula therapy not only provides high concentrations of
oxygen but also can deliver CPAP, helping to keep the airways open and improve
oxygenation, particularly in respiratory distress.
Question 10:
What is a potential complication of endotracheal intubation?
A. Hyperventilation
B. Respiratory acidosis
C. Esophageal intubation
D. Oxygen toxicity
Correct Option: C. Esophageal intubation
Rationale: Esophageal intubation is a significant risk during endotracheal intubation, as
placing the tube in the esophagus instead of the trachea can lead to inadequate
oxygenation and ventilation, compromising patient safety.
Question 11:
When should you perform a medical airway suctioning?
A. When a patient shows signs of low oxygen saturation
B. When there are secretions obstructing the airway
C. When a patient is unconscious
D. When administering oxygen
Correct Option: B. When there are secretions obstructing the airway
Rationale: Medical airway suctioning is performed to clear secretions that are
obstructing the airway, ensuring that the patient can breathe effectively and reducing
the risk of aspiration.
Question 12:
What is the maximum suction pressure that should be used for adults during
airway suctioning?
A. 80-100 mmHg
B. 100-120 mmHg
C. 60-80 mmHg
D. 120-150 mmHg
Correct Option: B. 100-120 mmHg