apparatus is used to measure the blood pressure?
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A sphygmomanometer, also known as a blood pressure meter, blood pressure monitor, or blood pressure gauge, is a device used to measure blood pressure, composed of an inflatable cuff to collapse and then release the artery under the cuff in a controlled manner, and a mercury or aneroid manometer to measure the pressure.
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Wrist blood pressure (BP) machines are accurate to within -2.5 to 3.5mmHg of upper arm BP machines, [1] and achieve correct BP classification in over 80% of people compared to ambulatory BP monitoring.
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A barometer is a scientific instrument used in meteorology to measure atmospheric pressure. A simple barometer consists of a long glass tube (closed at one end, open at the other) filled with mercury and turned upside down into a container of mercury.
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Non invasive blood pressure (NIBP): The non-invasive blood pressure (NIBP) parameter provides systolic, diastolic, and mean arterial blood pressure values, and heart rate. NIBP measurements can be made in automatic, manual, or STAT modes.
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Pressure gauges are devices that measure/check pressure and manometers will also do that for you. ... So, manometer (which uses fluid column principle to measure pressure difference) is also one type of pressure gauge.
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Blood pressure is measured in units of millimeters of mercury (mmHg).
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Answer From Sheldon G. Sheps, M.D. Public blood pressure machines, such as those found in pharmacies, may provide helpful information about your blood pressure, but they can have limitations too. The accuracy of these machines depends on several factors, such as a correct cuff size and proper use of the machines.
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To check the blood pressure manually, sit in a relaxed position with the arm at rest on a table. Secure the cuff on the bicep and squeeze the balloon to increase the pressure. Watch the aneroid monitor and increase the pressure to about 30 mm Hg over the normal blood pressure, or to 180 mm Hg if this is not known.
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One recent study demonstrated that aneroid sphygmomanometers are more accurate than automated devices in their ability to measure both the systolic and diastolic blood pressures; diastolic accuracy is particularly improved (98.7% accuracy using an aneroid manometer vs. 67.7% using digital technology).
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Blood pressure is the force that blood exerts upon the walls of the blood vessels or chambers of the heart. The components of blood pressure include systolic pressure, which results from ventricular contraction, and diastolic pressure, which results from ventricular relaxation.
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In medicine, pressure is still generally measured in millimetres of mercury. These measurements are in general given relative to the current atmospheric pressure: for example, a blood pressure of 120 mmHg, when the current atmospheric pressure is 760 mmHg, means 880 mmHg relative to perfect vacuum.
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Apple Watch alone cannot take a blood pressure reading. The only medically accurate and validated way to do so today is by stopping the blood flow by inflating a blood pressure cuff around your upper arm and then deflating it while listening for changes in your arteries.
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Manometers measure a pressure difference by balancing the weight of a fluid column between the two pressures of interest. Large pressure differences are measured with heavy fluids, such as mercury (e.g. 760 mm Hg = 1 atmosphere).
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MANUAL BLOOD PRESSURE MONITORS A stethoscope is needed to listen to the blood pulsing through the artery. You can see your blood pressure on the circular dial of the gauge as the needle moves around and the pressure in the cuff rises or falls. When used correctly, manual devices are very accurate.
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The easiest and most accurate way to measure the blood pressure at home is to buy an automated blood pressure monitor with an upper arm cuff. The instructions for use may vary with each machine, and a person should follow them carefully to ensure proper operation.
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Some wrist blood pressure monitors may be accurate if used exactly as directed. However, the American Heart Association recommends using a home blood pressure monitor that measures blood pressure in your upper arm and not using wrist or finger blood pressure monitors.
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To manually take your blood pressure, you'll need a blood pressure cuff with a squeezable balloon and an aneroid monitor, also known as a sphygmomanometer, and a stethoscope. An aneroid monitor is a number dial.