A nurse is caring for a client who has hyperkalemia and is receiving insulin therapy. Which of the following should the nurse recognize as an adverse outcome?

Serum glucose 58 mg/dL (74 to 106 mg/dL).

Serum sodium 138 mEq/L (136 to 145 mEq/L).

Calcium level of 10.0 mg/dL (9.0 to 10.5 mg/dL).

Serum potassium 4.8 mEq/L (3.5 to 5.0 mEq/L).