Question 1

Use this figure to compute the static compliance (Cs)for an intubated patient with an exhaled tidal volume (Vᴛ)of 500 mL.

Accepted Answer

A)  14 mL/cm H₂O 
B)  20 mL/cm H₂O 
C)  33 mL/cm H₂O 
D)  50 mL/cm H₂O 
A)  14 mL/cm H₂O 
B)  20 mL/cm H₂O 
C)  33 mL/cm H₂O 
D)  50 mL/cm H₂O

Question 2

Calculate the effective static compliance (Cs)given the following information about a patient receiving mechanical ventilation: peak inspiratory pressure (PIP)is 56 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 40 cm H₂O,exhaled tidal volume (Vᴛ)is 650 mL,and positive end expiratory pressure (PEEP)is 10 cm H₂O.

Accepted Answer

A)  14.1 mL/cm H₂O 
B)  16.3 mL/cm H₂O 
C)  21.7 mL/cm H₂O 
D)  40.6 mL/cm H₂O 
A)  14.1 mL/cm H₂O 
B)  16.3 mL/cm H₂O 
C)  21.7 mL/cm H₂O 
D)  40.6 mL/cm H₂O

Question 3

Based upon the following patient information,calculate the patient's static lung compliance: exhaled tidal volume (Vᴛ)is 675 mL,peak inspiratory pressure (PIP)is 28 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 8 cm H₂O,and PEEP is set at 5 cm H₂O.

Accepted Answer

A)  0.02 L/cm H₂O 
B)  0.03 L/cm H₂O 
C)  0.22 L/cm H₂O 
D)  0.34 L/cm H₂O 
A)  0.02 L/cm H₂O 
B)  0.03 L/cm H₂O 
C)  0.22 L/cm H₂O 
D)  0.34 L/cm H₂O

Question 4

During spontaneous inspiration alveolar pressure (PA)is about: ________________.

Accepted Answer

A)  -1 cm H₂O 
B)  +1 cm H₂O 
C)  0 cm H₂O 
D)  5 cm H₂O 
A)  -1 cm H₂O 
B)  +1 cm H₂O 
C)  0 cm H₂O 
D)  5 cm H₂O

Question 5

Plateau pressure (Pₚₗₐₜₑₐᵤ)is measured during which phase of the ventilatory cycle?

Accepted Answer

A)  Inspiration 
B)  End-inspiration 
C)  Expiration 
D)  End-expiration 
A)  Inspiration 
B)  End-inspiration 
C)  Expiration 
D)  End-expiration

Question 6

The graph that shows intrapleural pressure changes during normal spontaneous breathing is depicted by which of the following?

Accepted Answer

A)    
B)    
C)    
D)    
A)    
B)    
C)    
D)

Question 7

Air accidentally trapped in the lungs due to mechanical ventilation is known as which of the following?

Accepted Answer

A)  Plateau pressure (Pₚₗₐₜₑₐᵤ) 
B)  Functional residual capacity (FR
C)  
C)  Extrinsic positive end expiratory pressure (extrinsic PEEP) 
D)  Intrinsic positive end expiratory pressure (intrinsic PEEP) 
A)  Plateau pressure (Pₚₗₐₜₑₐᵤ) 
B)  Functional residual capacity (FR
C)  
C)  Extrinsic positive end expiratory pressure (extrinsic PEEP) 
D)  Intrinsic positive end expiratory pressure (intrinsic PEEP)

Question 8

Evaluate the combinations of compliance and resistance and select the combination that will cause the lungs to fill fastest.

Accepted Answer

A)  Cs = 0.1 L/cm H₂O $\quad$ Rₐᴡ= 1 cm H₂O/(L/sec) 
B)  Cs = 0.1 L/cm H₂O $\quad$ Rₐᴡ= 10 cm H₂O/(L/sec) 
C)  Cs = 0.03 L/cm H₂O $\quad$Rₐᴡ= 1 cm H₂O/(L/sec) 
D)  Cs = 0.03 L/cm H₂O $\quad$Rₐᴡ= 10 cm H₂O/(L/sec) 
A)  Cs = 0.1 L/cm H₂O $\quad$ Rₐᴡ= 1 cm H₂O/(L/sec) 
B)  Cs = 0.1 L/cm H₂O $\quad$ Rₐᴡ= 10 cm H₂O/(L/sec) 
C)  Cs = 0.03 L/cm H₂O $\quad$Rₐᴡ= 1 cm H₂O/(L/sec) 
D)  Cs = 0.03 L/cm H₂O $\quad$Rₐᴡ= 10 cm H₂O/(L/sec)

Question 9

Calculate the pressure needed to overcome airway resistance during positive-pressure ventilation when the proximal airway pressure (PAw)is 35 cm H₂O and the alveolar pressure (PA)is 5 cm H₂O.

Accepted Answer

A)  7 cm H₂O 
B)  30 cm H₂O 
C)  40 cm H₂O 
D)  175 cm H₂O 
A)  7 cm H₂O 
B)  30 cm H₂O 
C)  40 cm H₂O 
D)  175 cm H₂O

Question 10

Calculate the pressure required to achieve a tidal volume of 400 mL for an intubated patient with a respiratory system compliance of 15 mL/cm H₂O.

Accepted Answer

A)  6 cm H₂O 
B)  26.7 cm H₂O 
C)  37.5 cm H₂O 
D)  41.5 cm H₂O 
A)  6 cm H₂O 
B)  26.7 cm H₂O 
C)  37.5 cm H₂O 
D)  41.5 cm H₂O

Question 11

Calculate the static compliance (Cs),in mL/cm H₂O,when PIP is 47 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 27 cm H₂O,baseline pressure is 10 cm H₂O,and exhaled tidal volume (Vᴛ)is 725 mL.

Accepted Answer

A)  43 CS 
B)  36 CS 
C)  20 CS 
D)  0.065 CS 
A)  43 CS 
B)  36 CS 
C)  20 CS 
D)  0.065 CS

Question 12

The values below pertain to a patient who is being mechanically ventilated with a measured exhaled tidal volume (Vᴛ)of 700 mL.
$\begin{array} { | l | l | l | } 
\hline \text { Time } & \text { Peal Inspiratary Presure (ㄴ } \mathrm { H } _ { \mathbf { 2 } } \mathbf { 0 } \text { ) } & \text { Plateau Prefure (cm } \left. \mathrm { H } _ { 2 } \mathbf { O } \right) \
\hline 0800 & 35 & 30 \
\hline 1000 & 39 & 34 \
\hline 1100 & 45 & 39 \
\hline 1130 & 50 & 44 \
\hline
\end{array}$
Analysis of this data points to which of the following conclusions?

Accepted Answer

A)  Airway resistance is increasing. 
B)  Airway resistance is decreasing. 
C)  Lung compliance is increasing. 
D)  Lung compliance is decreasing. 
A)  Airway resistance is increasing. 
B)  Airway resistance is decreasing. 
C)  Lung compliance is increasing. 
D)  Lung compliance is decreasing.

Question 13

Use this figure to compute the static compliance for an intubated patient with an inspiratory flow rate set at 70 L/min.

Accepted Answer

A)  0.2 cm H₂O/(L/sec) 
B)  11.7 cm H₂O/(L/sec) 
C)  16.7 cm H₂O/(L/sec) 
D)  20 cm H₂O/(L/sec) 
A)  0.2 cm H₂O/(L/sec) 
B)  11.7 cm H₂O/(L/sec) 
C)  16.7 cm H₂O/(L/sec) 
D)  20 cm H₂O/(L/sec)

Question 14

Calculate airway resistance (Rₐᴡ)for a ventilator patient,in cm H₂O/L/sec,with the following information: Peak inspiratory pressure (PIP)is 20 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 15 cm H₂O,PEEP is 5 cm H₂O,and set flow rate is 50 L/min.

Accepted Answer

A)  5Rₐᴡ 
B)  6Rₐᴡ 
C)  10Rₐᴡ 
D)  15Rₐᴡ 
A)  5Rₐᴡ 
B)  6Rₐᴡ 
C)  10Rₐᴡ 
D)  15Rₐᴡ

Question 15

Calculate the static compliance (Cs),in mL/cm H₂O,when PIP is 26 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 19 cm H₂O,baseline pressure is 5 cm H₂O,and exhaled tidal volume (Vᴛ)is 425 mL.

Accepted Answer

A)  16 
B)  20 
C)  22 
D)  30 
A)  16 
B)  20 
C)  22 
D)  30

Question 16

An increase in peak inspiratory pressure (PIP)without an increase in plateau pressure (Pₚₗₐₜₑₐᵤ)is associated with which of the following?

Accepted Answer

A)  Increase in static compliance (Cs) 
B)  Decrease in static compliance (Cs) 
C)  Increase in airway resistance 
D)  Decrease in airway resistance 
A)  Increase in static compliance (Cs) 
B)  Decrease in static compliance (Cs) 
C)  Increase in airway resistance 
D)  Decrease in airway resistance

Use this figure to compute the static compliance (Cs)for an intubated patient with an exhaled tidal volume (Vᴛ)of 500 mL.

Based upon the following patient information,calculate the patient's static lung compliance: exhaled tidal volume (Vᴛ)is 675 mL,peak inspiratory pressure (PIP)is 28 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 8 cm H₂O,and PEEP is set at 5 cm H₂O.

During spontaneous inspiration alveolar pressure (PA)is about: ________________.

Plateau pressure (Pₚₗₐₜₑₐᵤ)is measured during which phase of the ventilatory cycle?

The graph that shows intrapleural pressure changes during normal spontaneous breathing is depicted by which of the following?

Air accidentally trapped in the lungs due to mechanical ventilation is known as which of the following?

Evaluate the combinations of compliance and resistance and select the combination that will cause the lungs to fill fastest.

Calculate the pressure needed to overcome airway resistance during positive-pressure ventilation when the proximal airway pressure (P_Aw)is 35 cm H₂O and the alveolar pressure (P_A)is 5 cm H₂O.

Calculate the pressure required to achieve a tidal volume of 400 mL for an intubated patient with a respiratory system compliance of 15 mL/cm H₂O.

Calculate the static compliance (Cs),in mL/cm H₂O,when PIP is 47 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 27 cm H₂O,baseline pressure is 10 cm H₂O,and exhaled tidal volume (Vᴛ)is 725 mL.

The values below pertain to a patient who is being mechanically ventilated with a measured exhaled tidal volume (Vᴛ)of 700 mL. Time Peal Inspiratary Presure (ㄴ ) Plateau Prefure (cm 0800 35 30 1000 39 34 1100 45 39 1130 50 44 Analysis of this data points to which of the following conclusions?

Use this figure to compute the static compliance for an intubated patient with an inspiratory flow rate set at 70 L/min.

Calculate airway resistance (Rₐᴡ)for a ventilator patient,in cm H₂O/L/sec,with the following information: Peak inspiratory pressure (PIP)is 20 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 15 cm H₂O,PEEP is 5 cm H₂O,and set flow rate is 50 L/min.

Calculate the static compliance (Cs),in mL/cm H₂O,when PIP is 26 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 19 cm H₂O,baseline pressure is 5 cm H₂O,and exhaled tidal volume (Vᴛ)is 425 mL.

An increase in peak inspiratory pressure (PIP)without an increase in plateau pressure (Pₚₗₐₜₑₐᵤ)is associated with which of the following?

How Ventilators Work

How a Breath Is Delivered

Establishing the Need for Mechanical Ventilation

Selecting the Ventilator and the Mode

Initial Ventilator Settings

Final Considerations in Ventilator Setup

Initial Patient Assessment

Ventilator Graphics

Assessment of Respiratory Function

Hemodynamic Monitoring

Methods to Improve Ventilation in Patient-Ventilator Management

Improving Oxygenation and Management of ARDS

Ventilator-Associated Pneumonia

Sedatives, Analgesics, and Paralytics

Extrapulmonary Effects of Mechanical Ventilation

Effects of Positive Pressure Ventilation on the Pulmonary System

Troubleshooting and Problem Solving

Basic Concepts of Noninvasive Positive-Pressure Ventilation

Weaning and Discontinuation from Mechanical Ventilation

Long-Term Ventilation

Neonatal and Pediatric Ventilation

Special Techniques in Ventilatory Support

Filters

Exam 1: Basic Terms and Concepts of Mechanical Ventilation

Use this figure to compute the static compliance (Cs)for an intubated patient with an exhaled tidal volume (Vᴛ)of 500 mL.

Based upon the following patient information,calculate the patient's static lung compliance: exhaled tidal volume (Vᴛ)is 675 mL,peak inspiratory pressure (PIP)is 28 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 8 cm H₂O,and PEEP is set at 5 cm H₂O.

During spontaneous inspiration alveolar pressure (PA)is about: ________________.

Plateau pressure (Pₚₗₐₜₑₐᵤ)is measured during which phase of the ventilatory cycle?

The graph that shows intrapleural pressure changes during normal spontaneous breathing is depicted by which of the following?

Air accidentally trapped in the lungs due to mechanical ventilation is known as which of the following?

Evaluate the combinations of compliance and resistance and select the combination that will cause the lungs to fill fastest.

Calculate the pressure needed to overcome airway resistance during positive-pressure ventilation when the proximal airway pressure (PAw)is 35 cm H₂O and the alveolar pressure (PA)is 5 cm H₂O.

Calculate the pressure required to achieve a tidal volume of 400 mL for an intubated patient with a respiratory system compliance of 15 mL/cm H₂O.

Calculate the static compliance (Cs),in mL/cm H₂O,when PIP is 47 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 27 cm H₂O,baseline pressure is 10 cm H₂O,and exhaled tidal volume (Vᴛ)is 725 mL.

The values below pertain to a patient who is being mechanically ventilated with a measured exhaled tidal volume (Vᴛ)of 700 mL. Time Peal Inspiratary Presure (ㄴ ) Plateau Prefure (cm 0800 35 30 1000 39 34 1100 45 39 1130 50 44 Analysis of this data points to which of the following conclusions?

Use this figure to compute the static compliance for an intubated patient with an inspiratory flow rate set at 70 L/min.

Calculate airway resistance (Rₐᴡ)for a ventilator patient,in cm H₂O/L/sec,with the following information: Peak inspiratory pressure (PIP)is 20 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 15 cm H₂O,PEEP is 5 cm H₂O,and set flow rate is 50 L/min.

Calculate the static compliance (Cs),in mL/cm H₂O,when PIP is 26 cm H₂O,plateau pressure (Pₚₗₐₜₑₐᵤ)is 19 cm H₂O,baseline pressure is 5 cm H₂O,and exhaled tidal volume (Vᴛ)is 425 mL.

An increase in peak inspiratory pressure (PIP)without an increase in plateau pressure (Pₚₗₐₜₑₐᵤ)is associated with which of the following?

How Ventilators Work

How a Breath Is Delivered

Establishing the Need for Mechanical Ventilation

Selecting the Ventilator and the Mode

Initial Ventilator Settings

Final Considerations in Ventilator Setup

Initial Patient Assessment

Ventilator Graphics

Assessment of Respiratory Function

Hemodynamic Monitoring

Methods to Improve Ventilation in Patient-Ventilator Management

Improving Oxygenation and Management of ARDS

Ventilator-Associated Pneumonia

Sedatives, Analgesics, and Paralytics

Extrapulmonary Effects of Mechanical Ventilation

Effects of Positive Pressure Ventilation on the Pulmonary System

Troubleshooting and Problem Solving

Basic Concepts of Noninvasive Positive-Pressure Ventilation

Weaning and Discontinuation from Mechanical Ventilation

Long-Term Ventilation

Neonatal and Pediatric Ventilation

Special Techniques in Ventilatory Support

Filters

Calculate the pressure needed to overcome airway resistance during positive-pressure ventilation when the proximal airway pressure (P_Aw)is 35 cm H₂O and the alveolar pressure (P_A)is 5 cm H₂O.