A client with bipolar disorder is receiving valproic acid 1,000 mg PO at bedtime. Prior to administering the medication, the nurse notes that the client's morning valproic acid level was 142 mcg/ml (984.63 mcmol/L). Which action should the nurse implement? Reference Range: Valproic Acid [50 to 100 mcg/mL (350 to 700 mcmol/L)]