A patient reports recurrent chest pain that occurs regardless of activity and is not relieved by rest. The provider administers a nitroglycerin tablet which does not relieve the discomfort. What is the next action?
a. Start aspirin therapy and refer the patient to a cardiologist.
b. Give the patient a beta blocker medication.
c. Prescribe a calcium channel blocker mediation.
d. Administer a second nitroglycerin tablet.