A client with a history of cardiac problems is having severe chest pain. What should be nurse's first response? 1. Notify the physician. 2. Administer an analgesic to control the pain. 3. Assess the...

A client with a history of cardiac problems is having severe chest pain. What should be nurse's first response?

1. Notify the physician.

2. Administer an analgesic to control the pain.

3. Assess the client's pain.

4. Start oxygen at 2 L/min via nasal cannula.