01
Written response
1 point
Which oxygen device provides high-concentration oxygen in urgent or severe hypoxemia and uses a reservoir that should remain inflated during inspiration?
Free Practice Quiz Question List
3 Oxygenation Strategies Online Quiz Questions
Use this free practice quiz with 20 questions to review 3 Oxygenation Strategies, test your knowledge, and prepare for your next test or exam.
20 questions
02
Fill in the blank
1 point
For most acutely ill adults, a common target is SpO₂ .
03
Choose one
1 point
An adult needs supplemental oxygen, and precise titration of oxygen concentration is important. Which device best fits this need?
- A
A nasal cannula, because it provides a fixed oxygen concentration regardless of breathing pattern
- B
A Venturi mask, using the specified adapter and flow
- C
A reservoir mask, because it is designed for precise oxygen concentration titration
- D
Bag-mask ventilation, because it is the routine choice for precise oxygen titration in a breathing patient
04
Choose one
1 point
A clinician selects a simple face mask because a nasal cannula is inadequate. What minimum flow should be used to reduce rebreathing of exhaled gas?
- A
At least 1 L/min
- B
At least 3 L/min
- C
At least 5 L/min
- D
Exactly 6 L/min
05
Choose all
1 point
Select all factors listed in the material that can impair the accuracy of a pulse-oximeter reading.
- A
Motion
- B
Poor peripheral perfusion
- C
The patient is receiving oxygen through a nasal cannula
- D
The clinician has reassessed the patient after a change in oxygen support
06
Written response
1 point
Which oxygen support may be considered before intubation when difficult laryngoscopy is expected and can often remain in place during laryngoscopy attempts?
07
Choose all
1 point
After changing a patient's oxygen or ventilatory support, which findings should be reassessed? Select all that apply.
- A
Oxygen saturation
- B
Respiratory effort
- C
Mental status
- D
The device's brand name
- E
Response to treatment
08
Fill in the blank
1 point
A normal SpO₂ does not establish that is adequate or that carbon dioxide is normal.
09
Choose one
1 point
An adult with severe hypoxemia is being prepared for planned intubation. Which preoxygenation approach is suggested rather than relying on HFNO alone?
- A
Use HFNO alone in every case because it is always more effective than NIV
- B
Skip preoxygenation and begin laryngoscopy immediately
- C
Use NIV/NIPPV for preoxygenation rather than relying on HFNO alone
- D
Use a simple face mask without checking whether it is well sealed
10
Open ended
1 point
An adult becomes critically ill with worsening hypoxemia, but the pulse-oximeter signal is questionable. Describe how to balance checking the reading with treating the patient, and what to do if the patient continues to deteriorate.
11
Choose one
1 point
A critically ill adult has signs of worsening hypoxemia, but the pulse-oximeter signal is unreliable. What is the best immediate approach?
- A
Pause all care until the monitor produces a reliable reading
- B
Do not delay urgent treatment; assess and support the patient while checking the signal and probe
- C
Assume the patient is not hypoxemic because the signal is questionable
- D
Change oxygen devices repeatedly before assessing the patient
12
Choose one
1 point
An adult at risk of hypercapnic respiratory failure needs oxygen at a carefully controlled concentration. Which device is designed to provide more controlled oxygen concentration?
- A
Nasal cannula
- B
Venturi mask
- C
Reservoir mask
- D
Bag-mask ventilation
13
Choose one
1 point
An acutely ill adult with COPD is receiving oxygen while awaiting blood-gas assessment. Which initial SpO₂ target range is commonly recommended for adults at risk of hypercapnic respiratory failure?
- A
94–98%
- B
96–100%
- C
88–92%
- D
100%
14
Written response
1 point
What is the minimum flow for a simple face mask to reduce rebreathing of exhaled gas?
15
True or false
1 point
True or false: If a patient at risk of hypercapnic respiratory failure has a life-threatening emergency, oxygen should be withheld until blood-gas results are available.
- A
True
- B
False
16
Choose one
1 point
An adult has severe hypoxemia and is placed on a reservoir mask. Which action best supports its intended use?
- A
Check that the oxygen source works and the reservoir stays inflated during inspiration.
- B
Use the mask without oxygen flow so the reservoir can fill from exhaled gas.
- C
Allow the reservoir to collapse during inspiration to control oxygen delivery.
- D
Rely on the mask to provide ventilation support if breathing becomes inadequate.
17
Written response
1 point
An adult is apneic and needs assisted breathing. What ventilation method is used to provide breaths through a mask?
18
Choose one
1 point
An adult has a normal pulse-oximeter reading, but their breathing appears shallow. What can you conclude from the SpO₂ reading alone?
- A
The patient’s carbon dioxide level is normal.
- B
The patient has no airway obstruction.
- C
Ventilation is adequate.
- D
None of these conclusions is established by SpO₂ alone.
19
True or false
1 point
A patient has an upper-airway obstruction and is becoming hypoxemic. True or false: Increasing supplemental oxygen alone will correct the obstruction.
- A
True
- B
False
20
True or false
1 point
A patient with respiratory failure is becoming less alert and cannot reliably protect their airway. True or false: These circumstances may make noninvasive ventilation unsuitable.
- A
True
- B
False