In the quiet state when to measure blood pressure can be, the human body’s blood pressure is constantly fluctuating, normal systolic blood pressure <120mmHg, diastolic blood pressure <80mmHg, strenuous exercise, smoking, taking coffee or tea, emotional changes, etc. will affect the level of blood pressure. For general patients, patients are measured in a quiet state. Before measuring blood pressure, the examinee should ban smoking, coffee and bladder emptying for half an hour, and rest quietly for more than 5 minutes in a chair with a backrest in a quiet environment. It is recommended that three measurements be taken and averaged to obtain an accurate blood pressure value. For patients with high blood pressure, if dizziness, headache and other physical discomforts occur, blood pressure should be measured immediately. If the blood pressure is high, medication should be taken according to the doctor's instructions to allow the blood pressure to return to a stable level. If your blood pressure reaches or exceeds 140mmHg systolic and/or 90mmHg diastolic on three occasions not on the same day, we recommend that you visit the Cardiology Clinic to determine whether you have hypertension and the next step in the diagnosis and treatment plan.