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Your Guide to Lowering Blood Pressure NHLBI Logo
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High Blood Pressure Detection

man checking blood pressure You can find out if you have high blood pressure by having your blood pressure checked regularly. Most doctors will diagnose a person with high blood pressure on the basis of two or more readings, taken on several occasions. A consistent blood pressure reading of 140/90 mmHg or higher is considered high blood pressure, another term for hypertension.

Some people experience high blood pressure only when they visit the doctor's office. This condition is called "white-coat hypertension." If your doctor suspects this, you may be asked to monitor your blood pressure at home or asked to wear a device called an ambulatory blood pressure monitor. This device is usually worn for 24 hours and can take blood pressure every 30 minutes. In this section you will learn more about diagnosing high blood pressure.

 How Do I Know If I Have High Blood Pressure?
 How Is Blood Pressure Tested?
 Tips for Having Your Blood Pressure Taken
 Categories for Blood Pressure Levels in Adults
 What Device Can I Use to Take My Own Blood Pressure?

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