What does sinus rhythm of 48-112 BPM mean?

Sinus rhythm of 48-112 beats per minute (BPM) indicates that the heart is beating in a regular pattern initiated by the sinus node, which is the heart's natural pacemaker. A rate of 48 BPM is considered bradycardia (slow heart rate), while 112 BPM is considered tachycardia (fast heart rate). This range suggests that the heart is functioning normally, but the specific rate can indicate different physiological states or conditions, such as physical fitness, stress, or underlying health issues. It's important to interpret this in the context of the individual's overall health and symptoms.