The spouse of a client with angina pectoris calls the physician's office and reports to the nurse that the client is experiencing chest pain and has taken one sublingual nitroglycerin tablet with no relief. What does the nurse tell the client's spouse to do?
a. Have the client rest and, if no relief is obtained, call the office back
b. Wait until the situation can be discussed with the physician, who will call them soon
c. Call Emergency Medical Services (EMS) immediately to take the client to the emergency department (ED)
d. Give two more nitroglycerin tablets 5 minutes apart and if still no relief, get the client into a car and take the client to the ED