The number of heartbeats is not a determining factor for heart failure classification, so it is not possible to determine the grade of heart failure, and you should go to the hospital as soon as possible for targeted treatment.
Currently, the commonly used clinical methods for grading heart failure are NYHA classification and 6-minute walk test classification method.
NYHA classification method is based on daily activities, physical activities have no symptoms of heart failure, heart function is divided into 4 levels. For example, no limitation of daily activities is class I, limitation of physical activities is class II, mild limitation of activities is class III, and inability to perform any daily activities is class IV.
The 6-minute walk test grading method requires the patient to walk as quickly as possible in a flat corridor within 6 minutes, and finally the distance is measured. Greater than 450 meters is considered mild heart failure, 150 to 450 meters is considered moderate heart failure, and less than 150 meters is considered severe heart failure.
In summary, heart failure grade cannot be determined by heart rate.
However, a patient with a heart rate of 47 beats per minute is considered bradycardic and is at risk of fainting and sudden death. The patient should go to the hospital as soon as possible to have the cause clarified, and then take medication such as salbutamol or have a pacemaker placed under the direction of the doctor.