Which of the following are causes of increased airway resistance? 1. Small endotracheal tube 2. High gas flow 3. Increased secretions 4. Frequent suctioning
a. 1 and 3 only
b. 1, 2, and 3 only
c. 3 and 4 only
d. 2, 3, and 4 only
Q. 2 Which of the following are associated with auto-PEEP? 1. Erroneous calculation of static lung compliance 2. Hemodynamic compromise 3. Barotraumas 4. Increasing mean airway pressure
a. 1 and 3 only
b. 1 and 2 only
c. 2, 3, and 4 only
d. 1, 2, 3, and 4
Q. 3 Which of the following factors is/are associated with an increased risk for auto-PEEP?
1. Mechanical ventilation of a patient with obstructive lung disease
2. High-minute volume during mechanical ventilation
3. Acute respiratory distress syndrome (ARDS) patients
4. Pulmonary fibrosis
a. 1 and 4 only
b. 1, 2, and 3 only
c. 3 only
d. 1, 2, 3, and 4
Q. 4 What is the normal disparity between end-tidal PCO2 and PaCO2?
a. End-tidal PCO2 is 1 to 5 mm Hg less than PaCO2
b. End-tidal PCO2 is 5 to 10 mm Hg less than PaCO2
c. End-tidal PCO2 is 1 to 5 mm Hg higher than PaCO2
d. End-tidal PCO2 is 5 to 10 mm Hg higher than PaCO2
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