how is blood pressure measured using a sphygmomanometer?
546443
(m)\n\n blood pressure can be measured either by using a machine called a sphygmomanometer (spig-mom-an-om-eter) or by using an automatic machine.\n\n\nA sphygmomanometer is the older kind of equipment that measures blood pressure using a column of mercury. The person taking your blood pressure will put a cuff around the top of your arm, pump up this cuff and then listen for sounds through a stethoscope placed on your arm. The sounds heard through the stethoscope will start and then finish at certain points on the mercury column, and this will give the reading for your blood pressure.\n\n There are also automatic digital machines that can measure blood pressure. They also use a cuff around your arm and will give a readout of your blood pressure.\n\n\n\n\nWhat do the numbers mean?\n\nWhen you have your blood pressure measured, it is written down as two numbers, one over the other like a fraction. \n\nFor example:\n\n140/90mmHg\n\nIt is said as "140 over 90," for example. The top number, which is called the systolic pressure, shows the pressure in your arteries when your heart is forcing blood through them. The bottom number, called the diastolic pressure, shows the pressure in your arteries when your heart relaxes. The top number can be anywhere from 90 to 240 and the bottom number can be anywhere from 60 to 140. Blood pressure is measured in millimetres of mercury, which is written down as: mmHg\n\nEveryone has a different blood pressure and it can change in the same person during the day and night. Your blood pressure varies by large amounts, depending on what you are doing. The lowest blood pressures occur when you are asleep or if you relax all your muscles. Standing up, exercising or anxiety all cause an increase in blood pressure. In a single day your blood pressure may vary by 30 to 40 mmHg systolic with similar proportionate changes in diastolic pressure. This is why when you have your blood pressure level assessed it is so important to have it measured under the same conditions every time.
295610
Blood pressure is a measurement of the force applied to the walls of the arteries as the heart pumps blood through the body. The pressure is determined by the force and amount of blood pumped, and the size and flexibility of the arteries.\nBlood pressure is continually changing depending on activity, temperature, diet, emotional state, posture, physical state, and medication use. I imagine you are referring to high blood pressure.  High blood pressure often has no signs or symptoms. The only way to find out if you have high blood pressure is to be tested for it.
997063
it is an estimate of the central vonous pressure... it can be measured by: \n1. identify the sternal angle.\n2. make a perpendecular line (w/ a ruler, w/ its  0 side to the chest) to the floor.\n3.make a nother perpendecular line (w/anything straight) to the ruler...wich levels w/ the hight of the j.v. wave...\n(it is measured by Cm.)\nhow to know the jugular venous wave level: \n1. identify the two heads of the sternocledomastoid muscle attaching to the clavicel...then go upwards(the vein goes up to the ear lope)...the wave can be seen..not palpated, biphasic, changes w/ respiration & body position.. w/ a positive abdominojugular reflex(w/ these previous charachterestics..u can differentiate it from the carotid artery, which is qiut deffecult for a beginner med.student!!).....\nif u have any further questions....just click on the picture box...
828069
the mercurial sphygmomanometer is one of the most sensitive and reliable measuring BP. You can find them in any health care center.
851431
MASS / VOLUME\n that's way you measure it in g/mL
317023
Sounds like a job for Wikipedia!\n\nBlood pressure is the pressure of the blood on the walls of the blood vessels as the heart squirts it through the circulatory system.   When your blood first leaves the pump (your heart) it's moving as fast as it's going to, and there's as much pressure in the system as there's going to be.  The farther from the heart you go, the less the pressure in the system (just like an irrigation system, or the plumbing in a house.)\n\nThe heart not only has to pump the blood out to where it's needed, it has to pump it back again, to run it through the lungs to pick up some more oxygen so it can be recirculated.  Blood pressure is much lower on the return trip, when the blood is way out there far from the pump.  The outbound system is your arteries, the return trip is your veins.  \n\nMostly when you measure blood pressure, it's the pressure in the big arteries that are close to the skin and easy to find without poking any holes (the brachial artery in the arm is an example). \n\nThe traditional way to measure blood pressure is in millimetres of mercury (mm Hg), and you always state it the same way so everyone knows what you're talking about.  From a medical point of view what you're interested in is how much pressure there is in the system when the heart isn't squirting new blood into it (at the "resting" phase or "bottom" of the heartbeat cycle) which is called the diastolic pressure; and then how much pressure there is in the system at the top of the cycle, when your heart is forcing new blood into your arteries, which is called the systolic pressure.  So the "top of the cycle" number goes on top, and the "bottom of the cycle" number goes on the bottom.  A typical reading for a resting, healthy adult is around 120/80 (meaning 120 mmHg systolic and 80 mmHg diastolic)\n\nHope this is what you needed!
686559
Blood pressure is the pressure exerted by the blood on the walls of the blood vessels. Unless indicated otherwise, blood pressure refers to systemic arterial blood pressure, i.e., the pressure in the large arteries delivering blood to body parts other than the lungs, such as the brachial artery (in the arm). The pressure of the blood in other vessels is lower than the arterial pressure. Blood pressure values are universally stated in millimetres of mercury (mm Hg), and are always given relative to atmospheric pressure—the absolute pressure of the blood in an artery with mean arterial pressure stated as 100 mm Hg, on a day with atmospheric pressure of 760 mm Hg, is 860 mm Hg.\n\nThe systolic pressure is defined as the peak pressure in the arteries during the cardiac cycle; the diastolic pressure is the lowest pressure (at the resting phase of the cardiac cycle). The mean arterial pressure and pulse pressure are other important quantities.
161321
it should be spelled as "sphygnomanometer".it includes-cuff, scaled glass tube,mercury,rubber tube,rubber bulb, valve,an iron body which hold all these in proper place,lock for mercury column,etc.\n If anybody  is hypertensive?he needs salt restriction in diet,regular exercise in the form of 45 minutes walk(fast walk=trotting),stess reducing  yoga or meditation along with antihypertensive medicines+diuretics if needed.get once kidney also tested to rule out the cause of disease.
161850
Yes it is correct for - blood pressure gauge (sphygmomanometer)
744084
First, your personal blood pressure can vary widely.  For instance, mine can change 20 points in as many minutes.\n\nSecond, I doubt those machines are calibrated on a regular basis.  If you used the same machine regularly, you would get a rough idea if you're generally going up or down, but from machine to machine - I'd doubt there'd be consistency.\n\nIf you can use a variety of equipment and average out (when taken under the same conditions) you'll get the best info, but of course, no one wants to take their pressure 20 times a day.\n\nTry to have the same conditions and test on the same equipment, so you can compare day to day.  Every once in a while get it properly done so you know how far off (if at all) your machine is.
1093033
They Check your blood pressure, examine you.  Just like on TV. It is no problem.
806979
Most pressure gauges use the principle of Bordon tube which is a coil or part of a coil of metal which moves when subjected to pressure or the lack of pressure.Other gauges use electronic sensors which transmit the readings digitally. All gauges must, of course, be calibrated.
350001
There are many things that determine your blood pressure, or the pressure of your blood within your arteries.  Here are a couple:\n\n* The ease of your blood passing through your arteries (or conversely the restrictions of your blood passing through...)\n* The permeability of your capilaries\n* The make-up of your blood (usually the amount of salts)\n* Your Heart and how hard it is beating\n* The amount of blood you currently have (If you lose a lot of blood, you will have low blood pressure - not what you want though)\n* Certain drugs can have other types of effects.\n\nJ
588962
Actually, the 100mm of Hg is a pressure measured relative to atmospheric pressure; that is, the "total" blood pressure is actually 860 mm of Hg, which is (860 - 760) = 100 mm Hg greater than atmospheric pressure.\n\nMany pressures are given this way, in terms of the pressure difference from one atmosphere.  In that case, 0 mm Hg is simply atmospheric pressure, not a vacuum.
868735
Exercise machine\nHome blood pressure monitor\nElectronic scales\nPerhaps?
918373
My honest feeling is the BP readings taken are not correct. Such high and low changes are next to impossible. You need to tak him to a cardiologist for evaluating the position and treating him. Blood Pressure - high or low - is termed as silent killer. Please see the doctor without delay. \n\nNow a short note from Wikipedia about BP for your inforamtion -\n\nBlood pressure is the pressure exerted by the blood at right angles to the walls of the blood vessels. Unless indicated otherwise, blood pressure refers to systemic arterial blood pressure, i.e., the pressure in the large arteries delivering blood to body parts other than the lungs, such as the brachial artery (in the arm). The pressure of the blood in other vessels is lower than the arterial pressure. Blood pressure values are universally stated in millimetres of mercury (mmHg). The systolic pressure is defined as the peak pressure in the arteries during the cardiac cycle; the diastolic pressure is the lowest pressure (at the resting phase of the cardiac cycle). The mean arterial pressure and pulse pressure are other important quantities.\n\nTypical values for a resting, healthy adult human are approximately 120 mmHg systolic and 80 mmHg diastolic (written as 120/80 mmHg), with large individual variations. These measures of blood pressure are not static, but undergo natural variations from one heartbeat to another or throughout the day (in a circadian rhythm); they also change in response to stress, nutritional factors, drugs, or disease-
60733
simply use a hydrometer.