Premature beats are an abnormal heart rhythm, so there is no such thing as a normal range. A normal heartbeat should be regular and regular, and there should be no premature beats. Generally speaking, the number of episodes of premature beats is less than 5 per minute, and the number of episodes per 24 hours is less than 300-400 per day. For example, if you have poor rest, smoke or drink alcohol, you can remove the bad stimuli. However, sometimes there are frequent premature beats, such as those with a heart rate of more than 5 beats per minute or more than 1000 beats per 24 hours, or those with other obvious symptoms, which are not good. For example, if you have ischemic heart disease, you should control ischemia, blood pressure and hyperthyroidism, and correct hypokalemia. If the effect is not good, you can also use some cardiac rhythm, slow heart rhythm tablets, betablockers or amiodarone, symptomatic treatment can be.