Final answer:
The nurse should include the statement “Hold the dose if your heart rate is less than 50 beats/min” when educating the client about newly prescribed diltiazem.
Step-by-step explanation:
The nurse should include the statement “Hold the dose if your heart rate is less than 50 beats/min” when educating the client about newly prescribed diltiazem. Diltiazem is a calcium channel blocker commonly prescribed for hypertension and certain heart conditions. It works by slowing down the heart rate and relaxing blood vessels, which helps to lower blood pressure. Therefore, if the client's heart rate is already low, taking the medication could further lower the heart rate to an unhealthy level.