Hypertension above 220 mmHg is a grade 3 hypertension, and acute renal failure, acute heart failure, cerebral hemorrhage, and hypertensive encephalopathy may occur in severe cases. Therefore, patients with hypertension above 220 mmHg should be treated immediately with antihypertensive therapy, such as the oral rapid antihypertensive drug captopril, and then promptly go to the hospital for further evaluation and treatment. When patients with hypertension above 220 mmHg arrive at the hospital, CT examination is done to exclude cerebrovascular accidents, renal function examination to exclude acute kidney damage, and cardiac function assessment to exclude acute cardiac insufficiency. Patients usually need to adhere to their medication and go to the hospital immediately for evaluation and treatment as soon as there is an increase in blood pressure.