Tags: Disease.
Sinus tachycardia (also colloquially known as sinus tach or sinus tachy) is a heart rhythm with elevated rate of impulses originating from the sinoatrial node defined as a rate greater than 100 beats/min (bpm) in an average adult. The normal heart rate in the average adult ranges from 60–100 beats/min. Note that the normal heart rate varies with age with infants having normal heart rate of 110–150 bpm to the elderly who have slower normals.
