摘要
Hypertension(HTN)is defined as a systolic blood pressure(SBP)of 140mmHg or above,or a diastolic blood pressure(DBP)of 90mmHg or above.The final diagnosis should be made after at least different three measurements on at least two separate health care visits.Long-term high blood pressure is a major risk factor for coronary artery disease,stroke,heart failure,peripheral vascular disease,vision loss and chronic kidney disease.