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What causes high blood pressure.
What to Know About a Blood Pressure Chart
Blood pressure refers to the amount of pressure there is when blood pushes against your artery walls.
Diastolic blood pressure
When you or a healthcare provider takes your blood pressure, you can check what the reading means using a blood pressure chart.
A blood pressure chart lists the five stages of blood pressure—from normal to a hypertensive crisis—and the range of blood pressure that falls into each category.
Measuring your blood pressure and evaluating it using a blood pressure chart can give you important information about your health, such as your risk of complications like heart disease and stroke.
How to Read a Blood Pressure Chart
The American Heart Association (AHA) and American College of Cardiology (ACC) provide the following blood pressure chart for adults:
| Blood Pressure Category | Systolic Blood Pressure (mmHg) | and/or | Diastolic Blood Pressure (mmHg) |
| Normal | Below 120 | and | Below 80 |
| Elevated | 120-129 | and | Below 80 |
| Hypertension Stage 1 | 130-139 | or | 80-89 |
| Hypertension Stage 2 | 140+ | or | 90+ |