What firing rate characterizes the Accelerated Junctional Rhythm?

The Accelerated Junctional Rhythm is characterized by a firing rate of 60 to 100 beats per minute. This rhythm is a junctional rhythm that occurs when the junctional pacemaker takes over pacing in the absence of intrinsic atrial activity, typically when the heart's normal conduction system is affected.

In this range, the rhythm is faster than a typical junctional rhythm, which usually fires at a rate of 40 to 60 beats per minute. However, it remains below the threshold of 100 beats per minute, distinguishing it from more rapid rhythms, such as junctional tachycardia, which typically exceeds 100 beats per minute. This understanding is crucial in differentiating between types of junctional rhythms, as the rate can provide valuable information about the heart's underlying condition and guide appropriate clinical interventions.