A Patient with Angina Who Is Taking Ranolazine [Ranexa] Has

A patient with angina who is taking ranolazine [Ranexa] has developed a respiratory infection and a dysrhythmia. The provider has ordered azithromycin [Zithromax] for the infection and amlodipine for the dysrhythmia. A nursing student caring for this patient tells the nurse that the patient's heart rate is 70 beats/min, and the blood pressure is 128/80 mm Hg. The nurse asks the student to discuss the plan for this patient's care. Which action is correct?

A) Observe the patient closely for signs of respiratory toxicity.
B) Question the order for azithromycin [Zithromax].
C) Report the patient's increase in blood pressure to the provider.
D) Request an order for a different calcium channel blocker.