A nurse is caring for a school-age child who is taking valproic acid. The nurse should expect the provider to order which of the following diagnostic tests?

A. Chest x-ray is not correct because it is not related to valproic acid therapy or its adverse effects. B. Serum liver enzyme levels is correct because valproic acid can cause hepatotoxicity and liver function tests should be monitored regularly. C. ABGS is not correct because it is not indicated for valproic acid therapy or its adverse effects. D. Urine culture and sensitivity is not correct because it is not related to valproic acid therapy or its adverse effects.