Page 400 - Clinical Application of Mechanical Ventilation

366 Chapter 11

7. On the pressure waveform, assist effort is present when the trigger pressure reaches the _______ setting.
A. tidal volume C. pressure limit
B. sensitivity D. peak flow

8. In CPAP mode, there are no _______ breaths and the airway pressure is above _______ cm H O.
2
A. mechanical, 0 C. spontaneous, 0
B. mechanical, 5 D. spontaneous, 5

9. An increase in inspiratory flow or airflow resistance would show an unchanged _______ but increased
_______. (See Figure 11-11.)

A. P ALV , PIP and P C. P and P ALV , PIP
TA
TA
B. P ALV and PIP, P D. P ALV , P TA
TA
10. A decrease in total compliance (C ) would show an unchanged _______ but increased _______. (See
LT
Figure 11-12.)
A. P ALV , PIP and P C. PIP, P ALV and PIP
TA
B. P , PIP and P ALV D. P ALV , P TA
TA

11. When the flow waveform selection is changed from constant flow to true descending ramp while holding
inspiratory time constant, the same volume can only be maintained if the peak flow of the descending
pattern is:
A. increased. C. halved.
B. decreased. D. doubled.

12. When the flow waveform selection is changed from constant flow to true descending ramp during VCV,
the same volume can only be maintained if the inspiratory time of the descending pattern is:
A. increased. C. halved.
B. decreased. D. doubled.

13. With time-limited ventilation, the higher initial peak flow for the descending ramp flow wave creates a
_______ initial flow resistive pressure (P ) than the P created by the constant flow. (See Figure 11-14.)
TA
TA
A. higher C. similar
B. lower D. constant

14. With flow-limited ventilation, the initial flow-resistive pressure (P ) is the same for the _______ flow
TA
waves. The initial peak flow level stays the same for _______ flow during flow-limited ventilation. (See
Figure 11-14.)
A. constant, constant
B. constant, descending ramp
C. descending ramp, descending ramp
D. constant and descending ramp, constant and descending ramp

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