Question 1

What do you do if the pressure deflection is greater than normal?

Accepted Answer

A)  Change the mode of ventilation. 
B)  Increase the PEEP. 
C)  Decrease the sensitivity to make it easier to trigger. 
D)  Decrease the rise time. 
A)  Change the mode of ventilation. 
B)  Increase the PEEP. 
C)  Decrease the sensitivity to make it easier to trigger. 
D)  Decrease the rise time. C

Question 2

What happens to the waveform, PIP, and Pplat when compliance decreases?

Accepted Answer

A)  Waveform size increases; difference in PIP and Pplat remains the same. 
B)  Waveform size increases; difference in PIP and Pplat decreases. 
C)  Waveform size decreases; difference in PIP and Pplat remains the same. 
D)  Waveform size increases; difference in PIP and Pplat increases. 
A)  Waveform size increases; difference in PIP and Pplat remains the same. 
B)  Waveform size increases; difference in PIP and Pplat decreases. 
C)  Waveform size decreases; difference in PIP and Pplat remains the same. 
D)  Waveform size increases; difference in PIP and Pplat increases. A

Question 3

How do you typically identify a patient-triggered breath (except when flow compensation is used)?

Accepted Answer

A)  When the waveform changes to a different color 
B)  A pressure rise without a pressure deflection below the baseline 
C)  When the ventilator displays the letter "S" with the breath displayed 
D)  A pressure deflection below baseline right before a rise in pressure 
A)  When the waveform changes to a different color 
B)  A pressure rise without a pressure deflection below the baseline 
C)  When the ventilator displays the letter "S" with the breath displayed 
D)  A pressure deflection below baseline right before a rise in pressure D

Question 4

What type of PVA does this P-T waveform represent?

Accepted Answer

A)  Trigger asynchrony 
B)  Flow asynchrony 
C)  Delayed cycling 
D)  Premature cycling 
A)  Trigger asynchrony 
B)  Flow asynchrony 
C)  Delayed cycling 
D)  Premature cycling

Question 5

Based on the scenario displayed on the scalars below, which of the following maneuvers is indicated at this point?

Accepted Answer

A)  Remove the expiratory filter to determine gas trapping 
B)  Inspiratory hold to measure plateau pressure 
C)  Expiratory hold to measure auto-PEEP 
D)  Increase the rise time 
A)  Remove the expiratory filter to determine gas trapping 
B)  Inspiratory hold to measure plateau pressure 
C)  Expiratory hold to measure auto-PEEP 
D)  Increase the rise time

Question 6

The P-T of a patient displays a bump at the beginning of the initial inspiratory tracing. This change is consistent with:

Accepted Answer

A)  increased airway resistance. 
B)  fast rise time. 
C)  decreased lung compliance. 
D)  air trapping. 
A)  increased airway resistance. 
B)  fast rise time. 
C)  decreased lung compliance. 
D)  air trapping.

Question 7

The scalars below are consistent with the presence of:

Accepted Answer

A)  gas trapping. 
B)  slow rise time. 
C)  flow asynchrony. 
D)  positive response to bronchodilator. 
A)  gas trapping. 
B)  slow rise time. 
C)  flow asynchrony. 
D)  positive response to bronchodilator.

Question 8

Which waveform is most likely to determine a sensitivity setting problem?

Accepted Answer

A)  Pressure-time 
B)  Flow-time 
C)  Volume-time 
D)  FVL 
A)  Pressure-time 
B)  Flow-time 
C)  Volume-time 
D)  FVL

Question 9

On a pressure-volume loop, what does beaking suggest?

Accepted Answer

A)  Overdistention 
B)  Airway obstruction 
C)  Presence of airway secretions 
D)  Insufficient PEEP 
A)  Overdistention 
B)  Airway obstruction 
C)  Presence of airway secretions 
D)  Insufficient PEEP

Question 10

In order to assess improvement after administration of a bronchodilator, you should see:

Accepted Answer

A)  lower mean airway pressures. 
B)  improved PEFR and shorter expiratory time. 
C)  decrease in Pplat. 
D)  improved PIFR and shorter inspiratory time. 
A)  lower mean airway pressures. 
B)  improved PEFR and shorter expiratory time. 
C)  decrease in Pplat. 
D)  improved PIFR and shorter inspiratory time.

Question 11

The FVL of a patient with tracheoesophageal fistula indicates a leak of at least:

Accepted Answer

A)  50 mL. 
B)  100 mL. 
C)  150 mL. 
D)  200 mL. 
A)  50 mL. 
B)  100 mL. 
C)  150 mL. 
D)  200 mL.

Question 12

On the first round of the evening, a critical care fellow is asking the respiratory therapist what mode of ventilation these scalars are more consistent with. The RT should answer:

Accepted Answer

A)  VAC. 
B)  PAC. 
C)  PRVC. 
D)  APRV. 
A)  VAC. 
B)  PAC. 
C)  PRVC. 
D)  APRV.

Question 13

When expiratory flow takes longer to return to baseline, what does this indicate on a flow waveform?

Accepted Answer

A)  Airway obstruction 
B)  Decreased alveolar compliance 
C)  Gas trapping 
D)  Air leak 
A)  Airway obstruction 
B)  Decreased alveolar compliance 
C)  Gas trapping 
D)  Air leak

Question 14

The P-T and the F-T (with brief inspiratory hold) of a patient admitted for COPD exacerbation confirm the presence of:

Accepted Answer

A)  air leak. 
B)  cycling asynchrony. 
C)  air trapping. 
D)  increased airway resistance. 
A)  air leak. 
B)  cycling asynchrony. 
C)  air trapping. 
D)  increased airway resistance.

Question 15

The respiratory therapist is taking care of a trauma patient with bilateral chest tubes for pneumothoraces. The inability to sustain adequate ventilation may be related to which of the following situations?

Accepted Answer

A)  Obstructed chest tube 
B)  Increased airway resistance 
C)  Air trapping 
D)  Air leak 
A)  Obstructed chest tube 
B)  Increased airway resistance 
C)  Air trapping 
D)  Air leak

Question 16

An increase in airway resistance causes the pressure-volume loop to do what?

Accepted Answer

A)  It causes it to widen. 
B)  It causes it to narrow. 
C)  It causes a shift upward. 
D)  It causes a shift to the middle. 
A)  It causes it to widen. 
B)  It causes it to narrow. 
C)  It causes a shift upward. 
D)  It causes a shift to the middle.

Question 17

Which mode of ventilation is more consistent with the scalars below?

Accepted Answer

A)  SIMV 
B)  APRV 
C)  PS 
D)  PAC 
A)  SIMV 
B)  APRV 
C)  PS 
D)  PAC

Question 18

What does a shift downward indicate on a PVL?

Accepted Answer

A)  Decreased resistance 
B)  Decreased compliance 
C)  Trigger asynchrony 
D)  Overdistention 
A)  Decreased resistance 
B)  Decreased compliance 
C)  Trigger asynchrony 
D)  Overdistention

Question 19

Which waveform is most likely to determine the beneficial effects of a bronchodilator treatment?

Accepted Answer

A)  Pressure-time 
B)  Flow-time 
C)  Volume-time 
D)  PVL 
A)  Pressure-time 
B)  Flow-time 
C)  Volume-time 
D)  PVL

Question 20

When inspiratory flow takes longer to return to baseline, what does this indicate on a flow waveform?

Accepted Answer

A)  Airway obstruction 
B)  Decreased alveolar compliance 
C)  Gas trapping 
D)  Air leak 
A)  Airway obstruction 
B)  Decreased alveolar compliance 
C)  Gas trapping 
D)  Air leak

What do you do if the pressure deflection is greater than normal?

What happens to the waveform, PIP, and P_plat when compliance decreases?

How do you typically identify a patient-triggered breath (except when flow compensation is used)?

What type of PVA does this P-T waveform represent?

Based on the scenario displayed on the scalars below, which of the following maneuvers is indicated at this point?

The P-T of a patient displays a bump at the beginning of the initial inspiratory tracing. This change is consistent with:

The scalars below are consistent with the presence of:

Which waveform is most likely to determine a sensitivity setting problem?

On a pressure-volume loop, what does beaking suggest?

In order to assess improvement after administration of a bronchodilator, you should see:

The FVL of a patient with tracheoesophageal fistula indicates a leak of at least:

On the first round of the evening, a critical care fellow is asking the respiratory therapist what mode of ventilation these scalars are more consistent with. The RT should answer:

When expiratory flow takes longer to return to baseline, what does this indicate on a flow waveform?

The P-T and the F-T (with brief inspiratory hold) of a patient admitted for COPD exacerbation confirm the presence of:

The respiratory therapist is taking care of a trauma patient with bilateral chest tubes for pneumothoraces. The inability to sustain adequate ventilation may be related to which of the following situations?

An increase in airway resistance causes the pressure-volume loop to do what?

Which mode of ventilation is more consistent with the scalars below?

What does a shift downward indicate on a PVL?

Which waveform is most likely to determine the beneficial effects of a bronchodilator treatment?

When inspiratory flow takes longer to return to baseline, what does this indicate on a flow waveform?

Principles of Mechanical Ventilation

Classification of Mechanical Ventilation

Modes of Mechanical Ventilation

Non-Invasive and Invasive Airway Management

Initiation of Mechanical Ventilation

Monitoring in Mechanical Ventilation

Management of Mechanical Ventilation

Critical Care Procedures

Pharmacotherapy in Critical Care

Weaning From Mechanical Ventilation

Neonatal and Pediatric Mechanical Ventilation

Medical Critical Care Issues

Traumatic Critical Care Issues

Critical Care Guidelines and Bundles

Filters

Exam 7: Waveform Analysis and Application

What do you do if the pressure deflection is greater than normal?

What happens to the waveform, PIP, and Pplat when compliance decreases?

How do you typically identify a patient-triggered breath (except when flow compensation is used)?

What type of PVA does this P-T waveform represent?

Based on the scenario displayed on the scalars below, which of the following maneuvers is indicated at this point?

The P-T of a patient displays a bump at the beginning of the initial inspiratory tracing. This change is consistent with:

The scalars below are consistent with the presence of:

Which waveform is most likely to determine a sensitivity setting problem?

On a pressure-volume loop, what does beaking suggest?

In order to assess improvement after administration of a bronchodilator, you should see:

The FVL of a patient with tracheoesophageal fistula indicates a leak of at least:

On the first round of the evening, a critical care fellow is asking the respiratory therapist what mode of ventilation these scalars are more consistent with. The RT should answer:

When expiratory flow takes longer to return to baseline, what does this indicate on a flow waveform?

The P-T and the F-T (with brief inspiratory hold) of a patient admitted for COPD exacerbation confirm the presence of:

The respiratory therapist is taking care of a trauma patient with bilateral chest tubes for pneumothoraces. The inability to sustain adequate ventilation may be related to which of the following situations?

An increase in airway resistance causes the pressure-volume loop to do what?

Which mode of ventilation is more consistent with the scalars below?

What does a shift downward indicate on a PVL?

Which waveform is most likely to determine the beneficial effects of a bronchodilator treatment?

When inspiratory flow takes longer to return to baseline, what does this indicate on a flow waveform?

Principles of Mechanical Ventilation

Classification of Mechanical Ventilation

Modes of Mechanical Ventilation

Non-Invasive and Invasive Airway Management

Initiation of Mechanical Ventilation

Monitoring in Mechanical Ventilation

Management of Mechanical Ventilation

Critical Care Procedures

Pharmacotherapy in Critical Care

Weaning From Mechanical Ventilation

Neonatal and Pediatric Mechanical Ventilation

Medical Critical Care Issues

Traumatic Critical Care Issues

Critical Care Guidelines and Bundles

Filters

What happens to the waveform, PIP, and P_plat when compliance decreases?