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Questions and Answers
What happens to the plateau pressure when respiratory system compliance decreases?
What happens to the plateau pressure when respiratory system compliance decreases?
If compliance decreases to 25 mL/cm H2O, what will the plateau pressure increase to?
If compliance decreases to 25 mL/cm H2O, what will the plateau pressure increase to?
Which stage occurs immediately after the end of inspiration in the mechanical breath cycle?
Which stage occurs immediately after the end of inspiration in the mechanical breath cycle?
What occurs to peak inspiratory pressure (PIP) when compliance decreases?
What occurs to peak inspiratory pressure (PIP) when compliance decreases?
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In a pressure waveform graph, what does the plateau region indicate?
In a pressure waveform graph, what does the plateau region indicate?
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Which component does NOT belong to the six stages of a mechanical breath cycle?
Which component does NOT belong to the six stages of a mechanical breath cycle?
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How is the pressure waveform affected by decreased respiratory compliance on the graph?
How is the pressure waveform affected by decreased respiratory compliance on the graph?
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What does the vertical axis represent in the pressure versus time graph of the breath cycle?
What does the vertical axis represent in the pressure versus time graph of the breath cycle?
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How does an increase in inspiratory flow rate affect inspiratory time?
How does an increase in inspiratory flow rate affect inspiratory time?
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What is the transairway pressure if the flow is 45000 mL/min and airway resistance is 10 cm?
What is the transairway pressure if the flow is 45000 mL/min and airway resistance is 10 cm?
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What is the I:E ratio if the expiration time is 3.27 sec and inspiration time is 0.73 sec?
What is the I:E ratio if the expiration time is 3.27 sec and inspiration time is 0.73 sec?
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What happens to peak inspiratory pressure (PIP) if airway resistance doubles to 10 cm?
What happens to peak inspiratory pressure (PIP) if airway resistance doubles to 10 cm?
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How long does it take to inspire 550 mL given the inspiratory flow rate of 45,000 mL/min?
How long does it take to inspire 550 mL given the inspiratory flow rate of 45,000 mL/min?
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What is the plateau pressure when static compliance is 50 ml/cm H2O and tidal volume is 550 mL?
What is the plateau pressure when static compliance is 50 ml/cm H2O and tidal volume is 550 mL?
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What remains constant despite changes in airway resistance up to 10 cm?
What remains constant despite changes in airway resistance up to 10 cm?
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What happens to the expiratory time if the inspiratory flow rate is decreased?
What happens to the expiratory time if the inspiratory flow rate is decreased?
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What characteristic of pressure in Assist Mode Ventilation is depicted by the graph?
What characteristic of pressure in Assist Mode Ventilation is depicted by the graph?
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What does the volume graph in Assist Mode Ventilation indicate?
What does the volume graph in Assist Mode Ventilation indicate?
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What does the Y-axis represent in the volume graph during Pressure Control Ventilation?
What does the Y-axis represent in the volume graph during Pressure Control Ventilation?
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Which of the following must be set when using Pressure Control Ventilation?
Which of the following must be set when using Pressure Control Ventilation?
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In the flow graph of Pressure Control Ventilation, what shape characterizes the expiratory phase?
In the flow graph of Pressure Control Ventilation, what shape characterizes the expiratory phase?
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What is represented on the X-axis of the pressure graph during Pressure Control Ventilation?
What is represented on the X-axis of the pressure graph during Pressure Control Ventilation?
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Which variable is primarily affected during the inspiratory phase in the pressure graph?
Which variable is primarily affected during the inspiratory phase in the pressure graph?
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Which parameter is NOT one of the four basic parameters most descriptive of mechanical ventilation?
Which parameter is NOT one of the four basic parameters most descriptive of mechanical ventilation?
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What type of loop provides quick information on specific changes in lung function?
What type of loop provides quick information on specific changes in lung function?
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Which of the following is NOT a variable plotted against time in waveform scalars?
Which of the following is NOT a variable plotted against time in waveform scalars?
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In the clinical example provided, what is the respiratory frequency (f) value for the volume ventilator?
In the clinical example provided, what is the respiratory frequency (f) value for the volume ventilator?
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Which of the following is a component of airflow that can be measured during mechanical ventilation?
Which of the following is a component of airflow that can be measured during mechanical ventilation?
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What effect does an increase in resistance have on flow during mechanical ventilation?
What effect does an increase in resistance have on flow during mechanical ventilation?
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Which mode of ventilation ensures that every breath delivered is patient-initiated or mandatory?
Which mode of ventilation ensures that every breath delivered is patient-initiated or mandatory?
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In which scenario would you expect to see a change in cycle time and respiratory rate interrelationship?
In which scenario would you expect to see a change in cycle time and respiratory rate interrelationship?
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How does an increase in flow rate impact inspiratory and expiratory time during mechanical ventilation?
How does an increase in flow rate impact inspiratory and expiratory time during mechanical ventilation?
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Which of the following statements accurately reflects the effect of compliance on ventilatory mechanics?
Which of the following statements accurately reflects the effect of compliance on ventilatory mechanics?
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What is the time interval between breaths when the frequency is set to 15 breaths per minute?
What is the time interval between breaths when the frequency is set to 15 breaths per minute?
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What happens to the expiratory time when the inspiratory flow rate is decreased?
What happens to the expiratory time when the inspiratory flow rate is decreased?
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How long does it take to inspire 550 mL when the flow rate is decreased to 22,500 mL per minute?
How long does it take to inspire 550 mL when the flow rate is decreased to 22,500 mL per minute?
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What is the effect on the time between breaths if the frequency of ventilation is decreased?
What is the effect on the time between breaths if the frequency of ventilation is decreased?
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What happens to the inspiratory time when the flow rate is reduced?
What happens to the inspiratory time when the flow rate is reduced?
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Study Notes
Effect of Decreased Respiratory System Compliance
- Decreased respiratory system compliance leads to increased plateau pressure, which in turn increases peak inspiratory pressure (PIP)
- This happens because the plateau pressure calculation divides by a smaller number (lower compliance).
- If compliance decreases by half (to 25 mL/cm H2O), plateau pressure increases to 22 cm H2O, and PIP increases to 27 cm H2O.
Mechanical Breath Stages
- A mechanical breath can be understood in six stages:
- Beginning of inspiration
- Inspiration
- End of inspiration
- Beginning of expiration
- Expiration
- End of expiration
- Components of the breath cycle are also important to understanding the process.
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Description
This quiz explores the effects of decreased respiratory system compliance on plateau pressure and peak inspiratory pressure. Additionally, it covers the stages of mechanical breathing, breaking down the process into six distinct phases. Test your knowledge on these crucial concepts in respiratory physiology.
