Final answer:
The nurse should document the finding of a pacemaker artifact followed by a QRS complex and continue to monitor the client's ECG rhythm, as it indicates the pacemaker is functioning correctly. Cardiac Muscle Metabolism and proper function are supported by the pacemaker in cases of arrhythmias. The heart rate can vary depending on the underlying rhythm and pacemaker effectiveness.
Step-by-step explanation:
When observing an ECG rhythm strip for a client with a temporary pacemaker, noting a pacemaker artifact followed by a QRS complex indicates that the pacemaker is functioning correctly as it is successfully initiating ventricular depolarization, which is evidenced by the presence of the QRS complex that follows. In this case, the appropriate nursing action would be (A) Document the finding and continue to monitor the client's ECG rhythm, as this represents normal pacemaker function, and there is no indication of loose pacemaker leads, need for immediate physician notification, or need to increase the pacemaker pacing rate.
Cardiac Muscle Metabolism is essential for the function of the heart, and artificial pacemakers provide critical support in situations of arrhythmias such as atrial fibrillation or third-degree blocks. These devices are programmable and can adapt to the patient's needs, whether providing stimulation temporarily or continuously, sometimes including defibrillation capabilities.
In cases where abnormalities like increased frequency between QRS complexes occur, one would generally expect the heart rate (pulse) to increase. However, in a third-degree block, despite impulses from the SA node, there is no correlation between atrial and ventricular activity, which could lead to a decrease in heart rate. Hence, the heart rate can be variable and dependent on the underlying rhythm and the effectiveness of the pacemaker.