Explanation

Answer: d. Improving myocardial oxygenation

Explanation: In clients with CHF, the primary indication for oxygen therapy is to improve myocardial oxygenation and relieve symptoms of myocardial ischemia.

Incorrect choices: a. Reducing the workload of the heart is a potential benefit of oxygen therapy but is not the primary indication in this case.

b. Decreasing peripheral edema is not a direct indication for oxygen therapy.

c. Preventing fluid overload is important in managing CHF but does not directly relate to the need for oxygen therapy.


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