In terms of machine performance, what large negative pressure swings early in inspiration indicate?
B) Incorrect sensitivity
Which of the following are essential components of a continuous positive airway pressure (CPAP) flow system?
D) I, II, III, and IV I. Blended source of pressurized gas II. Breathing circuit with reservoir bag III. Low-pressure or disconnect alarm IV. Expiratory threshold resistor
When checking a patient’s intermittent positive-pressure breathing (IPPB) breathing circuit before use, you notice that the device will not cycle off, even when you occlude the mouthpiece. What would be the most appropriate action in this case?
B) Check the circuit for leaks.
Which of the following is an absolute contraindication for using intermittent positive-pressure breathing?
C) Tension pneumothorax
Which of the following are appropriate initial settings for intermittent positive-pressure breathing given to a new patient?
C) Sensitivity 1 to 2 cm H2O below ambient pressure (i.e. -1 to -2 cmHO); pressure 10 to 15 cm H2O; moderate flow
Which of the following is NOT a potential contraindication for intermittent positive-pressure breathing?
D) Neuromuscular disorders
Intermittent positive-pressure breathing is associated with a passive exhalation.
A) True
Which of the following are potential complications of continuous positive airway pressure (CPAP) therapy?
C) I, III, and IV I. Barotrauma III. Gastric distention IV. Hypercapnia
Which of the following will make an intermittent positive-pressure breathing (IPPB) device cycle off prematurely? I. Airflow obstructed II. Kinked tubing III. Occluded mouthpiece IV. Active resistance to inhalation
D) I, II, III, and IV I. Airflow obstructed II. Kinked tubing III. Occluded mouthpiece IV. Active resistance to inhalation
What is the minimum airway pressure at which the esophagus opens, allowing gas to pass directly into the stomach?
