Exam 9: Ventilator Graphics

A patient is receiving full ventilatory support with volume ventilation.At 0700 the respiratory therapist observes the pressure-,volume-,and flow-time scalars shown in "A" below.Six hours later the respiratory therapist observes the scalars shown in "B." The most appropriate action to take is which of the following?

The most important factor to affect the degree of resistance in the airways is which of the following?

A patient is receiving ventilation with volume-controlled continuous mandatory ventilation (VC-CMV).During a patient-ventilator system check the respiratory therapist sees the flow-volume loop below.The most appropriate action is to do which of the following?

Identify the sinusoidal (or sine)waveform in the figure below.

Calculate the airway resistance (Rₐᴡ)using the information from the scalar below.

The respiratory therapist observes the following pressure-time and flow-time scalars following a patient being intubated and placed on a mechanical ventilator using volume ventilation.The most appropriate action is which of the following?

During a patient-ventilator system check the respiratory therapist notices that the pressure-volume loop begins at zero on the x-axis but does not return to zero during expiration.The cause of this is which of the following?

The two waveforms that are common for pressure scalars are which of the following?

What is the inspiratory time shown in the flow-time scalar below?

The term used to specify the flow,pressure,and volume waveforms that are graphed relative to time is called:

During pressure-controlled continuous mandatory ventilation (PC-CMV)the respiratory therapist observes the pressure-time scalar shown below.The most appropriate action to take is which of the following?

An increase in airway resistance during pressure ventilation will result in which of the following?

The respiratory therapist observes the pressure-time scalar seen below.Wave A was generated at 1300 hour and wave B at 1600 hour.The action that is most appropriate for this situation is which of the following?

What is the flow-cycle setting for the pressure support ventilation (PSV)breaths shown in the scalars below?

The type of flow curve produced by volume ventilation with constant flow is which of the following?

An inadequate flow setting during volume ventilation will cause which of the following to occur?

Delayed termination during pressure support ventilation (PSV)can be avoided with patients who have chronic obstructive pulmonary disease (COPD)by doing which of the following?

The respiratory therapist sees the following scalars on the screen of a ventilator providing support to a patient in the ICU.What action should the respiratory therapist take?

A reduction in compliance during pressure ventilation will cause which of the following?

The type of breath shown in the flow-volume loop below is which of the following?