what does top and bottom number of blood pressure mean?
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Blood pressure is recorded with 2 numbers. The systolic pressure (higher number) is the force at which your heart pumps blood around your body. The diastolic pressure (lower number) is the resistance to the blood flow in the blood vessels.
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if your top number is 140 or more - then you may have high blood pressure, regardless of your bottom number. if your bottom number is 90 or more - then you may have high blood pressure, regardless your top number. if your top number is 90 or less - then you may have low blood pressure, regardless of your bottom number.
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The first, or top number, is your pressure when your heart beats, called the systolic pressure. The second, or bottom number, measures the force of blood in your arteries while your heart is relaxed (filling with blood between beats). This is called the diastolic pressure.
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High blood pressure (hypertension) is when one or both of your blood pressure readings are higher than 130/80 mm Hg most of the time. If the top blood pressure number is between 120 and 130 mm Hg, and the bottom blood pressure number is less than 80 mm Hg, it is called elevated blood pressure.
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The lower reading, known as diastolic pressure, measures that force as the heart relaxes between contractions. Adult blood pressure is considered normal at 120/80.
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Current guidelines define a normal blood pressure reading as less than 120 mm Hg systolic (the top number) over 80 mm Hg diastolic (the bottom number). Doctors typically determine you have low blood pressure if your reading is below 90/60 mm Hg.
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Blood pressure usually ranges between 90 to 250 for the top or maximum number (systolic) and 60 to 140 for the bottom or minimum number (diastolic). A healthy blood pressure is 120/80 or less, but the lower you can get it, the better.
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Most adults in the UK have blood pressure readings in the range from 120 over 80 (120/80) to 140 over 90 (140/90). If your blood pressure is within this range, you should be taking steps to bring it down or to stop it rising any further. Our five top tips will show you how.
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Perhaps this has happened to you: You go to the doctor, for a checkup or a sprained ankle, and find that your blood pressure is high. Not really high, not hypertension high, but borderline high. Say 130 over 85. Normal blood pressure is 120/80 or below, and hypertension is defined as 140/90 or higher.
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As a general guide, low blood pressure is a reading of 90/60 or less. However, it is not necessary for both your systolic and diastolic readings to be in this range for it to be considered low blood pressure.
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It is called systolic pressure. The bottom number tells you what your blood pressure is when your heart is at rest between heartbeats. It is called diastolic pressure.
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The top number (systolic) minus the bottom number (diastolic) gives you your pulse pressure. For example, if your resting blood pressure is 120/80 millimeters of mercury (mm Hg), your pulse pressure is 40 — which is considered a normal and healthy pulse pressure.
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There are two types of blood pressure: Systolic blood pressure refers to the pressure inside your arteries when your heart is pumping; diastolic pressure is the pressure inside your arteries when your heart is resting between beats.
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The bottom number refers to your blood pressure when your heart muscle is between beats. This is called diastolic pressure. Both numbers are important in determining the state of your heart health. Numbers greater than the ideal range indicate that your heart is working too hard to pump blood to the rest of your body.
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Normal blood pressure is 139/89 or lower. Around 110/70 is ideal. During a postural hypotension episode, the top measurement drops 20 points or more, or the bottom number drops 10 points or more.
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Normal blood pressure is less than 120/80 mm Hg. Readings between 120/80 mm Hg and 139/89 mm Hg indicate that a person is at risk of developing hypertension, while readings of more than 140/90 mm Hg signify hypertension.
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As a general guide: ideal blood pressure is considered to be between 90/60mmHg and 120/80mmHg. high blood pressure is considered to be 140/90mmHg or higher. low blood pressure is considered to be 90/60mmHg or lower.