The patient-ventilator data over the past few hours demonstrates an increased peak inspiratory pressure (PIP) with a constant transairway pressure (PTA). The respiratory therapist should con-clude which of the following?
a. Static compliance (CS) has increased.
b. Static compliance (CS) has decreased.
c. Airway resistance (Raw) has increased.
d. Airway resistance (Raw) has decreased.
Q. 2 An increase in peak inspiratory pressure (PIP) without an increase in plateau pressure (Pplateau) is associated with which of the following?
a. Increase in static compliance (CS)
b. Decrease in static compliance (CS)
c. Increase in airway resistance
d. Decrease in airway resistance
Q. 3 The values below pertain to a patient who is being mechanically ventilated with a measured ex-haled tidal volume (VT) of 700 mL.
Time Peak Inspiratory Pressure (cm H2O) Plateau Pressure (cm H2O)
0800 35 30
1000 39 34
1100 45 39
1130 50 44
Analysis of this data points to which of the following conclusions?
a. Airway resistance is increasing.
b. Airway resistance is decreasing.
c. Lung compliance is increasing.
d. Lung compliance is decreasing.
Q. 4 A patient receiving mechanical ventilation has an exhaled tidal volume (VT) of 500 mL and a positive end expiratory pressure setting (PEEP) of 5 cm H2O. Patient-ventilator system checks reveal the following data:
Time PIP (cm H2O) Pplateau (cm H2O)
0600 27 15
0800 29 15
1000 36 13
The respiratory therapist should recommend which of the following for this patient?
1. Tracheobronchial suctioning
2. Increase in the set tidal volume
3. Beta adrenergic bronchodilator therapy
4. Increase positive end expiratory pressure
a. 1 and 3 only
b. 2 and 4 only
c. 1, 2, and 3 only
d. 2, 3, and 4 only
Q. 5 Plateau pressure (Pplateau) is measured during which phase of the ventilatory cycle?
a. Inspiration
b. End-inspiration
c. Expiration
d. End-expiration
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