A nurse is caring for a patient who has been taking an anticonvulsant drug for 4 weeks. The nurse asks the patient if the therapy is effective. The patient reports little change in seizure frequency. What is the priority intervention?

Contact the provider to request an order for serum drug levels.

Reinforce the need to take the medications as prescribed.

Request an order to increase the dose of the antiepileptic drug.

Encourage the client to start a seizure diary to log frequency of seizures.