A nurse in a mental health facility is reviewing the laboratory reports for four clients. Which of the following results should the nurse report to the provider immediately?
a) Serum potassium level of 3.8 mEq/L.
b) Blood glucose level of 120 mg/dL.
c) White blood cell count of 12,000/mm³.
d) Serum sodium level of 150 mEq/L.
