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High Blood Pressure - Screening and Prevention - Screening and Prevention

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Everyone age 3 or older should have their blood pressure checked by a healthcare provider at least once a year. Your doctor will use a blood pressure test to see whether you have consistently high blood pressure readings. Your doctor will talk to you about heart-healthy lifestyle changes to help prevent or manage your blood pressure.

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How to prepare for a blood pressure test

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Your doctor will use a blood pressure test to see if you have higher-than-normal blood pressure readings. The reading is made up of two numbers, with the systolic number above the diastolic number. These numbers are measures of pressure in mm Hg. To learn more about systolic and diastolic pressure, visit How the Heart Works.

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A blood pressure test is easy and painless and can be done in a doctor's office or clinic. A healthcare provider will use a gauge, stethoscope, or electronic sensor and a blood pressure cuff to measure your blood pressure. To prepare, take the following steps:

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  • Do not exercise, drink coffee, or smoke cigarettes for 30 minutes before the test.
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  • Go to the bathroom before the test.
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  • For at least 5 minutes before the test, sit in a chair and relax.
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  • Make sure your feet are flat on the floor.
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  • Do not talk while you are relaxing or during the test.
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  • Uncover your arm for the cuff.
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  • Rest your arm on a table so it is supported and at the level of your heart.
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If it is the first time your provider has measured your blood pressure, you may have readings taken on both arms.

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You can also take your blood pressure at home or at a pharmacy. Visit Measure Your Blood Pressure for more information.

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What the numbers mean

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For most adults, a normal blood pressure is less than 120/80 mm Hg. Your blood pressure is considered high when you have consistent systolic readings of 130 mm Hg or higher or diastolic readings of 80 mm Hg or higher.

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For children younger than 13, blood pressure readings are compared with readings common for children of the same, age, sex, and height. Read more about blood pressure readings for children.

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Talk to your doctor if your blood pressure readings are consistently higher than 120/80 mm Hg. NHLBI-supported research indicates that systolic blood pressure greater than 120 mm Hg can be increasingly harmful to health. Note that readings above 180/120 mm Hg are dangerously high and require immediate medical attention.

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How to prevent high blood pressure

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A heart-healthy lifestyle can help prevent high blood pressure from developing. To live a healthy lifestyle:

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Syndicated Content Details:
Source URL: https://www.nhlbi.nih.gov/subscribe/3608
Source Agency: National Heart, Lung, and Blood Institute (NHLBI)
Captured Date: 2018-05-11 16:29:00.0
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