Bradycardia, also known as bradycardia, is an important type of arrhythmia, and the most common causes are pathological sinus bradycardia, sinus arrest, sinus block, and atrioventricular block. It is manifested by dizziness, nausea, weakness, and sweating. In the field if the patient can get timely treatment, some of the symptoms can be reduced or relieved, the following teach how to do. Action Demonstration: Step 1 Assess the environment First, observe whether the environment at the scene is safe, and if there are hazards that need to be eliminated in time. If you find that the patient’s pulse is below 60 beats per minute, consider bradycardia; if necessary, measure the patient’s blood pressure and call the emergency number. Step 3 Continuous oxygen intake Before the arrival of the emergency vehicle, first, if available, the patient can be placed in a comfortable position and given oxygen at the same time. Step 4 Oral medication If the patient usually takes some medication to increase the heart rate, it is recommended to take the medication under the guidance of medical personnel at this time, and not to blindly misuse some medication. Special tips: 1, to monitor the heart rate, if the number of bradycardia reaches 40 beats per minute or less, it is recommended to apply a pacemaker or intervention for systemic treatment; 2, patients with bradycardia should pay attention to the usual life should not be strenuous exercise, so as not to cause bradycardia, causing dizziness, headache, transient darkness, or with the change of position and trigger blood pressure fluctuations, arrhythmia If bradycardia causes coronary atherosclerotic heart disease, or unstable angina pectoris, cardiac insufficiency of blood supply and chest tightness, shortness of breath, palpitations, we must take drugs to improve blood supply to the heart and drugs to increase the ventricular rate. For example, traditional Chinese medicine can be used such as Compound Salvia Drops and Heart Treasure Pill, all of which can effectively relieve bradycardia.