Which of the following is true concerning flow-dependent incentive spirometry devices?
a. The volume capacity for a child should be approximately 3 L.
b. The patient must perform a sustained maximum inspiration.
c. They are available as multiuse electrically powered devices.
d. Positive pressure within the device causes the flexible plastic bellows to rise.
ANS: B
The performance of a sustained maximum inspiration is necessary to perform incentive spirometry with a flow-dependent incentive spirometer (or any incentive spirometry device).
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