#1
What is the most common method of oxygen delivery in emergency medical care?
Nasal cannula
Venturi mask
Bag-valve-mask
Tracheostomy tube
#2
Which of the following is a characteristic of a Venturi mask?
It provides the highest FiO2 among low-flow oxygen devices
It is primarily used for long-term oxygen therapy
It delivers oxygen at a fixed concentration
It requires a tight seal to be effective
#3
What is the main purpose of using a pulse oximeter during oxygen therapy?
To measure oxygen flow rate
To assess respiratory rate
To monitor oxygen saturation levels
To measure end-tidal CO2
#4
Which of the following is a complication associated with high-flow oxygen therapy?
Hypoventilation
Hypercapnia
Hypoxemia
Hypothermia
#5
In airway management, what is the purpose of the chin lift maneuver?
To open the mouth
To lift the tongue off the posterior pharyngeal wall
To maintain alignment of the airway
To suction secretions from the mouth
#6
Which of the following is a potential complication of oxygen therapy in patients with chronic obstructive pulmonary disease (COPD)?
Hyperoxemia
Respiratory alkalosis
Respiratory acidosis
Pulmonary edema
#7
What is the primary function of a non-rebreather mask in delivering oxygen?
To deliver a precise oxygen concentration
To humidify the oxygen
To prevent rebreathing of exhaled air
To provide positive pressure ventilation
#8
Which of the following oxygen delivery devices is most suitable for providing oxygen therapy to a patient with facial burns?
Nasal cannula
Simple face mask
Non-rebreather mask
Tracheostomy mask
#9
What is the primary advantage of using a bag-valve-mask (BVM) device for ventilation?
It provides a more accurate FiO2
It allows for continuous positive airway pressure (CPAP)
It can deliver higher tidal volumes and oxygen concentrations
It is more lightweight and portable
#10
Which of the following is a potential complication of oxygen therapy in premature infants?
Hypercapnia
Bronchospasm
Retinopathy of prematurity
Apnea
#11
Which of the following is a potential complication of using a nasopharyngeal airway?
Laryngospasm
Epistaxis
Gastric distention
Hypoxemia
#12
What is the purpose of using a jaw thrust maneuver in airway management?
To open the mouth
To lift the tongue off the posterior pharyngeal wall
To maintain alignment of the airway
To suction secretions from the mouth
#13
Which of the following oxygen delivery devices is most suitable for providing oxygen therapy to a patient with a suspected carbon monoxide poisoning?
Nasal cannula
Simple face mask
Non-rebreather mask
Hyperbaric oxygen chamber
#14
Which of the following is a potential complication of using a bag-valve-mask (BVM) device?
Hypoventilation
Hypoxemia
Gastric distention
Laryngospasm
#15
Which of the following is a potential complication of oxygen therapy in patients with chronic respiratory failure?
Hyperoxia
Hypocapnia
Pulmonary hypertension
Metabolic alkalosis
#16
Which of the following is a potential complication of endotracheal intubation?
Pneumothorax
Hemoptysis
Bronchospasm
Esophageal perforation
#17
What is the recommended initial flow rate for oxygen administration via nasal cannula in adult patients?
1-2 L/min
3-5 L/min
6-8 L/min
10-15 L/min
#18
Which of the following is a contraindication for the use of a nasopharyngeal airway?
Conscious patient with intact gag reflex
Severe facial trauma
Foreign body airway obstruction
Upper airway burn injury
#19
What is the recommended action if oxygen saturation does not improve with oxygen therapy?
Increase the oxygen flow rate
Switch to a different oxygen delivery device
Perform endotracheal intubation
Administer bronchodilators
#20
Which of the following statements regarding high-flow nasal cannula (HFNC) therapy is true?
It is contraindicated in patients with hypoxemic respiratory failure
It delivers a fixed FiO2 regardless of the patient's breathing pattern
It provides positive end-expiratory pressure (PEEP) to the airway
It is primarily used for short-term oxygen therapy
#21
What is the recommended action if a patient receiving oxygen therapy develops signs of oxygen toxicity?
Decrease the oxygen flow rate
Switch to a lower FiO2 delivery device
Administer bronchodilators
Increase the respiratory rate
#22
What is the primary indication for the use of continuous positive airway pressure (CPAP) in emergency medical care?
To improve oxygenation in patients with pulmonary embolism
To provide ventilatory support in patients with acute respiratory distress syndrome (ARDS)
To prevent airway collapse in patients with obstructive sleep apnea
To treat hypotension in patients with septic shock
#23
Which of the following statements regarding tracheostomy tubes is true?
They are primarily used for short-term airway management
They are inserted through the mouth into the trachea
They are associated with a lower risk of infection compared to endotracheal tubes
They allow for easier communication compared to endotracheal tubes
#24
What is the primary indication for the use of a laryngeal mask airway (LMA) in emergency medical care?
To secure the airway during endotracheal intubation
To provide a conduit for administering medications directly into the trachea
To prevent aspiration of gastric contents
To establish a patent airway in patients with difficult airways
#25
What is the primary purpose of using a tracheostomy tube with a cuff inflated?
To facilitate communication
To prevent aspiration of secretions
To provide positive end-expiratory pressure (PEEP)
To secure the tube in the trachea