The exercise tolerance of an older adult is impaired after a MI because of a low ejection fraction.Rank the following interventions that the nurse should use to assist this individual to restore baseline functional status in order of importance,beginning with the first intervention.

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The nurse first helps the patient maintain myocardial oxygenation by keeping the patient's SaO? above 95%; if it drops below that level,then the arterial blood lacks sufficient oxygen to meet tissue oxygen demands.Second,the nurse provides a well-balanced diet for tissue building and repair.The patient has little hope of resuming baseline functioning without adequate food for fuel and maintaining muscle bulk.Third,to help maintain muscle bulk and joint flexibility,the nurse helps the patient perform range-of-motion exercises in preparation for more strenuous physical activity.Last,before ambulation,the nurse ensures that the patient is able to sit in the chair four times a day as progress toward restoring baseline functioning.

The Exercise Tolerance of an Older Adult Is Impaired After