Prior to administering the evening dose of carbamazepine, the nurse notes that the client's morning carbamazepine level was 8.4 mg/L (35.6 mcmol/L). Which action should the nurse take?

Notify the healthcare provider of the carbamazepine level.

Administer the carbamazepine as prescribed.

Assess the client for side effects of carbamazepine.

Withhold this dose of carbamazepine.