The nurse applies supplemental oxygen to the client who has emphysema. Which oxygen delivery device does the nurse choose for the client?
1. Nasal cannula
2. Simple facemask
3. Nonrebreather mask
4. Partial rebreather mask
1
1. The nurse applies supplemental oxygen to the client with a nasal cannula because the cannula delivers oxygen at a suitably low flow rate for the client with emphyse-ma, maintaining hypoxemia as the client's respiratory drive.
2. A facemask is unsuitable for the client with emphysema because the mask can ag-gravate carbon dioxide retention.
3 and 4. A nonrebreather mask and partial rebreather mask are unsuitable for the client because each is suited for delivery of high oxygen concentrations.
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