Once the symptoms of fast heartbeat as well as dizziness appear, the first thing to do is to lie down in place, and if there is oxygen, it is best to inhale oxygen. In addition, to take some drugs, such as usually suffer from high blood pressure as well as coronary heart disease and other conditions, it is necessary to take antihypertensive drugs and coronary expansion, anticoagulant drugs, such as nifedipine extended-release tablets, isosorbide mononitrate tablets and aspirin. If it is caused by other reasons, such as hypoglycemia or anemia, it is necessary to take oral sugar cubes or replenish blood volume, and pay attention to keep warm. If the symptoms do not resolve after rest and self-treatment, you need to dial 120 to have a hospital doctor help solve the problem.