Exam 3: Classification of Mechanical Ventilators
Exam 1: Principles of Mechanical Ventilation29 Questions
Exam 2: Effects of Positive Pressure Ventilation30 Questions
Exam 3: Classification of Mechanical Ventilators29 Questions
Exam 4: Operating Modes of Mechanical Ventilation30 Questions
Exam 5: Special Airways for Ventilation30 Questions
Exam 6: Airway Management in Mechanical Ventilation30 Questions
Exam 7: Noninvasive Positive Pressure Ventilation29 Questions
Exam 8: Initiation of Mechanical Ventilation30 Questions
Exam 9: Monitoring in Mechanical Ventilation30 Questions
Exam 10: Hemodynamic Monitoring30 Questions
Exam 11: Ventilator Waveform Analysis30 Questions
Exam 12: Management of Mechanical Ventilation29 Questions
Exam 13: Pharmacotherapy for Mechanical Ventilation29 Questions
Exam 14: Procedures Related to Mechanical Ventilation30 Questions
Exam 15: Critical Care Issues in Mechanical Ventilation30 Questions
Exam 16: Weaning From Mechanical Ventilation30 Questions
Exam 17: Neonatal Mechanical Ventilation30 Questions
Exam 18: Mechanical Ventilation in Non-Traditional Settings30 Questions
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The ____ is the system that governs or controls the ventilator drive mechanism or output control valve.
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(Multiple Choice)
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B
Which of the following waveforms are characteristically produced by ventilators having a rotary-driven piston drive mechanism?
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(Multiple Choice)
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Correct Answer:
C
Describe the four types of flow waveforms.
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(Essay)
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The rectangular waveform is produced when volume is the control variable and the output is an ascending ramp. The flow waveform (a derivative of the volume waveform with respect to time), assumes the characteristic rectangular shape. The ramp waveform can be ascending or descending. If flow rises as the breath is delivered, it is termed ascending. If flow falls during the ventilator-supported breath, it is called a descending ramp. The sinusoidal waveform resembles the positive portion of a sine wave. It is generated by a rotary-driven piston drive mechanism.
_______________ proposed a new way to classify mechanical ventilators based on related features, physics, and engineering.
(Short Answer)
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A ____ breath is initiated and delivered by the ventilator when it senses the patient's spontaneous inspiratory effort.
(Multiple Choice)
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A negative pressure ventilator applies pressure inside the chest to expand it.
(True/False)
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Automatic tube compensation is active both during inspiration and expiration, and may reduce air trapping and _______________.
(Short Answer)
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Which of the following flow waveforms is produced when volume is the control variable and the output is an ascending ramp?
(Multiple Choice)
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_______________ alert the clinician to settings or parameters that are not within acceptable ranges or specifications, or they warn the clinician that the ventilator has failed some part of a self-diagnostic test.
(Short Answer)
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Flow triggering has been shown to be more sensitive and responsive to a patient's efforts than pressure triggering.
(True/False)
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____ are ventilators that measure and control inspiratory and expiratory time.
(Multiple Choice)
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The type of drive mechanism determines the characteristic flow and pressure patterns each ventilator produces.
(True/False)
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____ is defined as a change in volume divided by a change in pressure.
(Multiple Choice)
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Explain the advantage of both pressure-controlled ventilation and volume-controlled ventilation.
(Essay)
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____ is a time-triggered, pressure-limited and time cycled mode that allows for spontaneous breathing.
(Multiple Choice)
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Which of the following types of control circuits may also be referred to as servo controlled?
(Multiple Choice)
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____ alarms alert the clinician to changes in oxygen concentration or gas temperature.
(Multiple Choice)
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