What does the term "junctional rhythm" indicate?

The term "junctional rhythm" specifically refers to a cardiac rhythm that originates from the atrioventricular (AV) junction. This rhythm occurs when the normal pacemaker of the heart, the sinoatrial (SA) node, fails to initiate impulses, causing the heart to rely on the secondary pacemaker located within the AV junction area.

In a junctional rhythm, the heart rate is typically slower, usually between 40 to 60 beats per minute, since the AV junction acts as a backup pacemaker. This phenomenon can occur due to various underlying issues, such as an SA node dysfunction or other cardiac conditions.

Understanding this term is crucial for monitor technicians, as recognizing junctional rhythms on an ECG can help in assessing the patient's cardiac status and determining the need for further medical intervention.