Free Practice Quiz Question List

4 Ventilation Principles and Support Online Quiz Questions

Use this free practice quiz with 20 questions to review 4 Ventilation Principles and Support, test your knowledge, and prepare for your next test or exam.

20 questions

True or false

1 point

True or false: A patient can have an acceptable oxygen saturation while ventilation is failing and carbon dioxide is rising.

A
True
B
False

True or false

1 point

True or false: Pressure support generally guarantees a minimum respiratory rate even if the patient does not trigger breaths.

A
True
B
False

True or false

1 point

True or false: For every adult patient with a pulse receiving bag-mask ventilation, use one breath every 6 seconds.

A
True
B
False

Choose one

1 point

A patient’s lung mechanics change while receiving pressure-control ventilation. Which statement best describes what may happen to delivered tidal volume?

A
The ventilator guarantees a set tidal volume while airway pressure varies.
B
The ventilator delivers a set inspiratory pressure for a specified time, while tidal volume may vary.
C
The ventilator assists triggered breaths but cannot deliver a minimum set rate.
D
The ventilator sets FiO₂ and PEEP but does not deliver inspiratory support.

Choose one

1 point

A ventilator is set to provide a minimum rate while also supporting extra breaths when the patient triggers them. Which mode best matches this description?

A
It assists only patient-triggered breaths and generally has no minimum rate.
B
It delivers a set inspiratory pressure while tidal volume stays fixed.
C
It provides a minimum set rate and supports additional breaths triggered by the patient.
D
It guarantees a set pressure and tidal volume regardless of lung mechanics.

Choose one

1 point

A ventilated patient’s peak pressure rises, but plateau pressure remains relatively unchanged. Which problem does this pattern often suggest?

A
Reduced compliance is the most likely explanation because both pressures usually remain unchanged.
B
Increased airway resistance is a likely explanation.
C
A leak is most likely because it raises peak pressure while leaving plateau pressure unchanged.
D
Overdistention is confirmed because peak pressure alone identifies it.

Choose one

1 point

A ventilator suddenly displays a low-pressure alarm. Which problem is a common cause to check for?

A
An increase in airway resistance from bronchospasm.
B
A leak or circuit disconnection.
C
Reduced lung compliance from overdistention.
D
A kinked tube obstructing exhalation.

Choose all

1 point

Select all problems that can cause a high-pressure ventilator alarm.

A
Secretions obstructing the airway
B
A kinked tube
C
Bronchospasm
D
A circuit disconnection
E
Reduced lung compliance

Choose all

1 point

A patient with obstructive disease is at risk of air trapping and auto-PEEP. Select all appropriate principles for adjusting support.

A
Lower the respiratory rate when appropriate to allow more time for exhalation.
B
Increase inspiratory flow when appropriate to allow more time for exhalation.
C
Shorten expiratory time by using a higher rate.
D
Monitor for worsening acidosis or fatigue.

Written response

1 point

In a passive ventilated patient, what pressure is measured during an inspiratory pause to assess pressure after airflow stops?

Written response

1 point

During adult cardiac arrest with an advanced airway, compressions continue while breaths are given. According to the cited recommendation, what is the interval between breaths? Give the value in seconds.

Fill in the blank

1 point

For lung-protective ventilation, clinicians select tidal volume using , not actual body weight.

Fill in the blank

1 point

Alveolar ventilation is lower than minute ventilation because some of each breath remains in .

Open ended

1 point

An intubated adult suddenly deteriorates while a high-pressure ventilator alarm sounds. Describe your immediate assessment and response, including a structured way to consider likely causes.

Choose one

1 point

An adult has an acceptable oxygen saturation, but measurements show that carbon dioxide is rising. Which interpretation best fits this finding?

A
Oxygenation and ventilation are interchangeable, so the rising carbon dioxide is not concerning if saturation is acceptable.
B
Oxygenation may remain acceptable while ventilation fails and carbon dioxide rises.
C
Rising carbon dioxide primarily indicates that supplemental oxygen is too low.
D
An acceptable oxygen saturation rules out a ventilation problem.

Choose one

1 point

When providing adult bag-mask ventilation, which technique best supports effective breaths while reducing the risk of excessive ventilation?

A
Squeeze rapidly and forcefully to maximize chest rise.
B
Deliver each breath over several seconds and begin the next before the chest falls.
C
Give each breath smoothly over about one second, producing visible chest rise, then allow full exhalation.
D
Use a fixed large volume for every adult, regardless of chest movement.

Choose one

1 point

A clinician needs a mode in which tidal volume is set and airway pressure can change as lung mechanics change. Which mode matches that goal?

A
The ventilator delivers a set tidal volume, while airway pressure varies with lung and chest-wall mechanics.
B
The ventilator holds inspiratory pressure constant, so tidal volume cannot vary.
C
The ventilator provides patient-triggered breaths but no supported breaths when the patient does not trigger.
D
The ventilator guarantees a minimum rate only when the patient triggers each breath.

Written response

1 point

In volume-targeted ventilation, minute ventilation is approximately $V_T \times$ respiratory rate. If $V_T = 0.5\ \text{L}$ and the rate is $12$ breaths/min, what is the approximate minute ventilation? Enter the numerical value in L/min.

Choose one

1 point

For an adult with ARDS, which approach best reflects the lung-protective ventilation guidance described in the material?

A
Choose tidal volume from actual body weight and target plateau pressure above 30 cm H₂O.
B
Use predicted body weight, often beginning near $6\ \text{mL/kg}$ , and keep plateau pressure below $30\ \text{cm H}_2\text{O}$ .
C
Use predicted body weight but set tidal volume above $8\ \text{mL/kg}$ to reduce respiratory rate.
D
Choose tidal volume based on oxygen saturation alone and do not monitor plateau pressure.

Written response

1 point

Besides disconnection or loss of airway integrity, what circulatory change can cause a sudden fall in end-tidal carbon dioxide?