Final answer:
The appropriate statement for the nurse to include in the teaching about perphenazine is that the provider will monitor the client's blood pressure closely while taking the medication.
Step-by-step explanation:
The appropriate statement for the nurse to include in the teaching is: 'Your provider will monitor your blood pressure closely while you are taking this medication.'
This statement is important because perphenazine is an antipsychotic medication that can cause side effects such as hypotension (low blood pressure). Close monitoring of blood pressure is necessary to ensure the safety of the client while taking the medication.