A mechanically ventilated patient has just experienced a life-threatening ventilator malfunction. How should the therapist record this equipment malfunction?
A. Level 1
B. Level 2
C. Level 3
D. Level 4
Q. 2 The therapist is monitoring the flow, volume, and pressure scalars of a patient receiving mechanical ventilation. After the first exhalation, the therapist initiates an expiratory pause. Based on the pressure-time tracing in particular, what will the therapist observe?
A. plateau pressure
B. auto-PEEP
C. applied PEEP
D. applied and auto-PEEP
Q. 3 While preparing to perform endotracheal suctioning on a mechanically ventilated patient, the therapist is alerted to the activation of low-pressure and low-volume alarms. These alarms are mandatory, redundant, and noncanceling. How should the therapist classify this event?
A. Level 4
B. Level 3
C. Level 2
D. Level 1
Q. 4 Based on the pressure-time scalar shown below, identify the following labels.
A. f = PIP; g = PEEP
B. f = plateau pressure; g = PIP
C. f = PIP; g = plateau pressure
D. f = plateau pressure; g = PEEP
Q. 5 The therapist is measuring a patient's tidal volume as the patient receives mechanical ventilation. The pneumotachometer being used is a differential pressure flowmeter type incorporated in the system of the mechanical ventilator, which is currently administering 100 O2 to the patient. By what percent will the measurement be in error because of the 100 O2?
A. 5
B. 12
C. 16
D. 21
Q. 6 Which of the following components comprise airway or ventilator circuit pressures? I. pressure generated to overcome airway resistance II. transpulmonary pressure III. pressure caused by dynamic compression IV. pressure from respiratory system compliance
A. I, IV only
B. II, III only
C. I, III, IV only
D. II, III, IV only
Q. 7 The therapist is monitoring pressure from an esophageal balloon. What pressure is reflected by that device?
A. transairway pressure
B. pleural pressure
C. alveolar pressure
D. tracheal pressure
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