The client's laboratory results indicate that the serum potassium level is 2.5 mEq/L (2.5 mmol/L). Which action should the nurse take? Reference Range: Potassium (K+) [3.5 to 5.0 mEq/L (3.5 to 5.0 mmol/L)]

Prepare to administer a glucose, then insulin, then potassium infusion.

Inform the healthcare provider of the need for potassium replacement.

Instruct the client to Increase dally Intake of potassium rich foods.

Change the plan of care to Include hourly urinary output measurements.