what does the top and bottom number mean when taking your blood pressure?
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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. They're both measured in millimetres of mercury (mmHg).
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For a normal reading, your blood pressure needs to show a top number (systolic pressure) that's between 90 and less than 120 and a bottom number (diastolic pressure) that's between 60 and less than 80.
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The bottom number is the diastolic blood pressure, which is the force as your heart relaxes. These are the standard classifications for normal and high blood pressure. Normal blood pressure: 90/60 to under 120/80 mm Hg. Prehypertension, or risk for hypertension: 120-139/80-89 mm Hg.
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The first number is the systolic pressure, when your heart pushes blood around your body. The second is the diastolic pressure, when your heart relaxes. 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).
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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. Blood pressure rises and falls throughout the day and night.
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In adults, blood pressure is considered to be normal under a systolic value of 140 mmHg and under a diastolic value of 90 mmHg. When taking your blood pressure for the first time, it makes sense to measure the blood pressure in both arms, because it's sometimes high on only one side.
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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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['Healthy:A healthy blood pressure reading is less than 120/80 millimeters of mercury (mm Hg).', 'Elevated:The systolic number is between 120 and 129 mm Hg, and the diastolic number is less than 80 mm Hg.']
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Systolic blood pressure, the top number, measures the force your heart exerts on the walls of your arteries each time it beats. Diastolic blood pressure, the bottom number, measures the force your heart exerts on the walls of your arteries in between beats.
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Optimal blood pressure is a reading of lower than 120/80. When your blood pressure numbers are consistently greater than 135/85, you're considered to have high blood pressure, or hypertension (but if you have diabetes or kidney disease, 130/80 is considered a high reading).
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High blood pressure is now defined as readings of 130 mm Hg and higher for the systolic blood pressure measurement, or readings of 80 and higher for the diastolic measurement. That is a change from the old definition of 140/90 and higher, reflecting complications that can occur at those lower numbers.
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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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Your systolic blood pressure is the top number on your reading. It measures the force of blood against your artery walls while your ventricles — the lower two chambers of your heart — squeeze, pushing blood out to the rest of your body. Your diastolic blood pressure is the bottom number on your reading.
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ANSWER. The diastolic reading, or the bottom number, is the pressure in the arteries when the heart rests between beats. This is the time when the heart fills with blood and gets oxygen. A normal diastolic blood pressure is lower than 80. A reading of 90 or higher means you have high blood pressure.
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A normal blood pressure for an adult is defined as 90 to 119 systolic over 60 to 79 diastolic. The range between 120 to 139 systolic and 80 to 89 diastolic is called pre-hypertension, and readings above that indicate hypertension, or high blood pressure.
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Blood pressure is measured in units of millimeters of mercury (mmHg). The readings are always given in pairs, with the upper (systolic) value first, followed by the lower (diastolic) value.
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Some experts define low blood pressure as readings lower than 90 mm Hg systolic or 60 mm Hg diastolic. If either number is below that, your pressure is lower than normal. A sudden fall in blood pressure can be dangerous.