A nurse observes that a patient's potassium level is 5.5 mEq/L.In response to this potassium level, the nurse's first action should be to:
1)Assess the patient's apical heart rate and cardiac rhythm.
2)Instruct the patient to increase intake of foods containing potassium.
3)Monitor patient for polyuria, polydipsia, and polyphagia.
4)Notify the requesting health-care provider.
