Two weeks ago, the PMHNP prescribed the antidepressant escitalopram (Lexapro) for a 28-year-old female client with generalized anxiety disorder. At her initial appointment, she scored 28 on the Hamilton Anxiety Rating Scale (HAM-A). At today’s follow-up visit, she scored 26. She reports no side effects from the Lexapro. Which of the following is the next step for the PMHNP?