While observing an ECG, a nurse notes that there is a prolonged PR interval in several consecutive readings. Knowing the phases of the cardiac cycle, what is the nurse's best action in regard to patient care?
1
Prepare the patient for potential pacemaker implantation surgery.
2
Assess the patient for symptoms of heart block, such as fatigue or dizziness.
3
Increase the rate of the IV fluids to increase cardiac output.
4
Leave the findings for the cardiologist to review without further action.