A client tells the nurse that the arthritis pain is not relieved by 400 mg of ibuprofen every 4 hours, so the client doubles the dose. What is the nurse's best response?

That much ibuprofen should relieve your pain.

You probably should ask your healthcare provider if it is acceptable.

That amount is greater than the recommended daily amount. Discussing your increased pain with your healthcare provider is important.

Ibuprofen is eliminated by the kidneys. It would be important for your healthcare provider to order BUN and creatinine levels to determine if the increased dose is safe.