After the change-of-shift report, which of the following assigned patients should the nurse attend to first? The patient with: 1. stable vital signs who returned 40 minutes ago after a PCTA. 2. an MI...

After the change-of-shift report, which of the following assigned patients should the nurse attend to first? The patient with:

1. stable vital signs who returned 40 minutes ago after a PCTA.

2. an MI complaining of a headache who was transferred from the CCU earlier.

3. stable angina whose chest pain was relieved by two nitroglycerin tablets 2 hours ago.

4. unstable angina who is having chest pain, shortness of breath, nausea, and anxiety.