What is the wandering pacemaker rhythm?

What is the wandering pacemaker rhythm?

• A. An irregular rhythm with a fast rate
• B. An irregular rhythm with a normal rate range
• C. A regular rhythm with a decreased rate
• D. A regular rhythm with a variable interval

Answer: (B)

The wandering pacemaker rhythm is characterized as an irregular rhythm that maintains a normal heart rate, typically between 60 and 100 beats per minute. This rhythm is produced by the shift of the pacemaker site among various locations in the atria, which leads to variations in the P-wave morphology. As the pacemaker location wanders, the P-waves can appear different from one beat to the next, resulting in the irregularity of the rhythm. Despite the irregularity caused by the shifting pacemaker, the overall heart rate remains within the normal range, distinguishing this rhythm from other types that may exhibit faster or slower rates.