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Important Things About Your Sphygmomanometer

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Post Important Things About Your Sphygmomanometer   Important Things About Your Sphygmomanometer Date-310Sun Sep 12, 2010 4:03 am

Sphygmomanometer is an instrument with which you canmeasure your blood pressure. It provides you an indirect method to keepa proper tab on the flow and pressure of your blood. It is the mostcommonly used equipment to meter blood pressure. A sphygmomanometerfunctions by inflating a cuff made of rubber. This inflated cuff isthen placed around the arm of the patient till the blood flow stops inthat area. In simple terms blood pressureis described as the systemic arterial blood pressure. This pressure isexerted by the blood at right angles to the blood vessels. If you everhad a chat with your doctor, he would have told you that apart fromflowing in a stream, your blood flows in the form of regular spurts.The continuous pressure of your blood is dependent on the elasticity ofyour arteries. Such a pressure is known as diastolic pressure. Witheach heartbeat there occurs an increased pressure, which is termed assystolic pressure. Now after understandingthe systolic and diastolic pressures, it will be easy for you tocomprehend the functioning of a sphygmomanometer. The instrumentconsists of a rubber bag known as cuff. In it's interior is attached amercury pressure gauge. The mercury gauge and the cuff are connectedvia rubber tube. A rubber pump is also attached to both these parts,which is used to inflate the cuff. The functioning of this equipmentfollows a very simple principle. As thepressure of the cuff becomes equal to the pressure in the artery, thepulse disappears. This can be felt by keeping a stethoscope on thebrachial artery. The pressure measurements can be easily seen on themercury gauge. This is what you call a systolic pressure. Now as youloosen the air pump, the cuff starts to deflate and eventually themercury in the glass gauge begins to fall. With this the stethoscopicsound gets muffled and then disappears. This is what is termed asdiastolic pressure. The measurement of blood pressure with the help of sphygmomanometer is termed as the Korotkoff's method. Aswith any other equipment there are certain things that you should keepin mind while measuring your blood pressure using a sphygmomanometer.They are : 1.The most important part of a sphygmomanometer is the cuff. Make sure that the cuff is free of any leaks. 2.Besidesthis the cuff should be of a tangible size, according to the arm.Ideally it should be covering a third portion of your upper arm. 3.The mercury used in the glass tunnel should be free from impurities. 4.Before measuring the blood pressure make sure the mercury is stationed at a zero mark. 5.Whileyou are inflating the cuff, see to it that the mercury rises smoothlyin the tunnel and immediately stops as you stop pumping air in the cuff. Follow these simple guidelines and you will get accurate measurement of your blood pressure.
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