A client with a permanent pacemaker reports dizziness and fatigue. The nurse notes a heart rate of 50 bpm and an irregular rhythm on the monitor. What is the MOST immediate nursing action?

✓ Correct Answer: Option C

Low heart rate, dizziness, and fatigue indicate possible pacemaker malfunction. Immediate assessment of the device and the client, followed by notifying the provider, is crucial to prevent serious complications and ensure appropriate intervention.