Sinus bradycardia is identical to normal sinus rhythm, except the rate is less than what value?

Sinus bradycardia is characterized by a sinus rhythm where the heartbeat is slower than the normal range. In this context, the defining threshold for normal sinus rhythm is a heart rate of 60 beats per minute (bpm) and above. When the heart rate drops below this value, it is classified as bradycardia. Thus, the correct value that distinguishes sinus bradycardia from a normal sinus rhythm is 60 bpm.

Maintaining a heartbeat within the normal range is crucial for effective circulation and oxygen delivery to the body. When the heart rate falls below this level, it may indicate an underlying issue that requires assessment and potentially medical intervention. This understanding is foundational for recognizing and responding appropriately to variations in heart rhythms during Advanced Life Support scenarios.