Accelerated junctional rhythm occurs within which heart rate range?

Accelerated junctional rhythm is defined as a heart rhythm that originates from the junction of the atria and ventricles, specifically the area around the AV node. For a rhythm to be classified as accelerated junctional, it typically needs to occur at a heart rate greater than the normal junctional rhythm, which is generally between 40 to 60 beats per minute.

In this case, accelerated junctional rhythm is characterized by a heart rate that falls within the range of 60 to 100 beats per minute. This higher rate indicates that the junctional tissue is firing more rapidly than it does in the normal resting state. The ability of junctional tissue to increase its pacing rate in response to physiological demands is what defines this rhythm as "accelerated."

The option that encompasses this heart rate range of 60 to 100 bpm accurately describes where accelerated junctional rhythm is found, involving the increased firing capability of the junctional region. This understanding of the heart's electrical conduction system and its ability to adapt frequencies is crucial in diagnosing and managing arrhythmias.