The nurse is teaching the client how to use the flow-oriented sustained maximal inspiration (SMI) device. Which teaching point is not appropriate for this client? 1
. Sealing the lips tightly around the mouthpiece
2. Inhaling slowly and deeply until the piston is elevated to the preset level
3. Holding the breath for 6 seconds
4. Removing the mouthpiece and exhaling normally
Correct Answer: 2
The piston is found in the volume-oriented SMI, not the flow-oriented SMI. All of the other actions would be correct for both volume-oriented and flow-oriented SMIs.
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