Hypertensive emergency is an extremely critical condition, often under the influence of trauma, emotional changes, excessive fatigue, cold stimulation, climate change and endocrine disorders and other adverse triggers, blood pressure suddenly rises to more than 180-200/120mmHg, while the emergence of acute damage to the heart, brain, kidneys and large blood vessels, such as the patient feels a sudden headache, dizziness, blurred vision, nausea, vomiting; chest tightness, chest pain, panic, shortness of breath, inability to lie down, restlessness, large suffering from dripping; face pale or flushed, both hands shaking, temporary limb numbness movement disorders, aphasia, and even a sudden attack. Chest pain, panic, shortness of breath, inability to lie down, irritability, drenching; pale or flushed face, trembling of both hands, temporary numbness of limbs, aphasia, and even convulsions and coma. Hypertensive emergencies such as this cannot be handled at home and have to be admitted to the hospital for emergency resuscitation, requiring the blood pressure to be brought down in a short period of time. Hypertension sub-emergency is the most common situation in daily life, referring to the case of increased blood pressure without acute target organ damage, that is to say, only the measured blood pressure is relatively high, and there is no obvious discomfort, or only a slight dizziness, head swelling, this situation does not need to go to the hospital emergency emergency blood pressure lowering, but as long as the blood pressure is lowered within a few hours to a day, adjust the oral medication can put the blood pressure under control. If you find elevated blood pressure at home, you generally need to do the following things: 1. Rest immediately Find a place to lie down, flat or semi-recumbent, in a place with soft light and air circulation, do not make loud noises around, and rest peacefully. 2.Monitor blood pressure Monitor blood pressure at 5-10 minute intervals, see my article (How to measure blood pressure to be accurate?) (Is it accurate to measure your blood pressure at home?) The upper arm of the blood pressure measurement is at the same level as the heart, and the muscles of the limbs are relaxed to observe whether the blood pressure can fall naturally. If you have Captopril, you can take one tablet, which will be effective in about 5-10 minutes, and you can repeat one tablet after half an hour; if it is accompanied by chest tightness, chest pain and other uncomfortable symptoms, you can take nitroglycerin tablets under the tongue, which can also achieve the effect of lowering blood pressure; if the above drugs are not available, you can also take one tablet when your blood pressure is high if you have nifedipine (cardiac pain) at home, and pay attention to Blood pressure should not fall too fast. In short, the blood pressure is elevated do not panic, first to figure out if it is a hypertensive emergency, if not, according to the above methods can be their own blood pressure control, learn to do an intelligent hypertensive patients.