Whether the rapid heart rate can be reduced according to the reasons for rapid heart rate, the need to find the reasons for treatment, as follows: 1, rapid heart rate is commonly caused by underlying diseases, such as hyperthyroidism, hyperthyroidism to control hyperthyroidism drug treatment. The underlying disease causes the heart rate to increase soon for active treatment; 2, the use of ephedrine drugs cause more rapid heart rate. When using drugs containing ephedrine, be careful not to use them frequently to cause accumulation in the body, which can lead to an increase in heart rate. If the heart rate is too fast, it is necessary to induce vomiting and use antagonistic drugs to reduce the effect of ephedrine on the increase of heart rate; 3, the heart rate is accelerated due to cardiac factors, such as tachyarrhythmia, common rapid atrial fibrillation, atrial flutter, supraventricular tachycardia, etc., in the etiology of treatment at the same time to control the treatment of arrhythmia, you can use drugs to slow down the heart rate, such as digitalis, beta-blockers, calcium ion 4, heart failure will also lead to a significant increase in heart rate to more than 100 beats/min, then need to enhance myocardial contractility treatment, reduce the heart preload and afterload, cardiac, diuretic, vasodilator therapy, correction of heart failure, the rapid heart rate will gradually return to normal range; 5, early blood volume deficiency, such as severe dehydration, early hemorrhagic shock will compensate for the increase in heart rate. At this time, we should treat the causes of rapid heart rate, such as appropriate fluid supplementation to improve the effective circulation deficiency; appropriate blood transfusion to avoid sympathetic excitation caused by blood loss, which induces rapid heart rate.