The pulse oximeter indicates a patient's blood oxygen level is 89%. A nurse knows that it is important to
1. Verify the oximeter is placed on a site that has adequate capillary refill.
2. Call the laboratory and order arterial blood gases to get a more accurate oxygen level.
3. Encourage the patient to get out of bed and ambulate more.
4. Let the patient rest quietly to reduce the need for oxygen.
ANS: 1
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