A Description of a Manual Blood Pressure Gauge
Definition
A blood pressure gauge is used to determine the pressure exerted against the walls of arteries as blood pumps through. (“Sphygmomanometer”, 2016)
Introduction and General Information
This description, for a new nursing student, explains the working parts and function of a Prestige Medical model manual blood pressure gauge. A blood pressure gauge is used by medical professionals in combination with a stethoscope to obtain an accurate blood pressure reading. A blood pressure cuff is often used when diagnosing and treating hypertension, or high blood pressure.
The blood pressure gauge, or sphygmomanometer, was first invented in 1881 by Samuel Siegfried Karl Ritter von Basch and was made of a rubber bulb and a column of mercury. The bulb was designed to
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It measures 20 and one half inches long and 5 and one half inches wide. The cuff is made of black canvas and wraps around the arm of the patient and is held in place by Velcro attached to both ends of the cuff. (“Anatomy of a Sphygmomanometer”, 2017)
• Bulb- The bulb is attached to the main part of the blood pressure gauge by rubber tubing measuring 21 inches long. Squeezing the bulb will push air into the bladder inside the cuff. (“Anatomy of a Sphygmomanometer”, 2017)
• Bladder- The bladder is located inside the cuff and is attached to the bulb via rubber tubing. The bladder fills with air when the bulb is squeezed and exerts pressure on the limb the cuff is wrapped around. (“Anatomy of a Sphygmomanometer”, 2017)
• Valve- The valve is a small knob located near the bulb. The valve controls the amount of air allowed into the bladder. Turning the valve clockwise will slow or stop air from entering or exiting the bladder. Turning the valve counterclockwise will release the air from the bladder. (“Anatomy of a Sphygmomanometer”,
When the liquid level is above the calibration line on the pipette, remove the bulb quickly and put your thumb or index finger over the pipette. Carefully “roll” finger to the side and allow the liquid to drop until the meniscus is level with the mark. Then hold the pipette over the flask to receive the liquid and remove the finger. Allow the liquid to drain out.
The respirometer uses the principle of water displacement. As the amount of gas in the respirometer changes, this will be reflected by an equivalent displacement of water in the pipette. Remember that at the same temperature and pressure,...
The research problem is clearly stated in the introduction and various times during the literature review. While it is known that automatic sphygmomanometers are not as accurate when compared to the gold standard of manual sphygmomanometer during single blood pressure readings they are still being used a triage instruments in emergency departments (Dind, Short, Ekholm, & Holdgate, 2011, p. 526). Triage is an essential step in the emergency department and instruments used in triage need to be accurate. Little is known about the accuracy of automatic devices when assessing postural blood pressures. It is shown in this study that orthostatic hypotension is a direct link to what triage category the patient is assigned, which can affect variables such as wait time and care received, so accurate measurement of this is an important factor in the emergency setting (Dind et al., 2011, p. 531).
Because it is a way of knowing the pressure that the blood is putting on the walls of arteries and veins.
The individual will have their blood pressure levels taken using a blood pressure machine called a sphygmomanometer, where a cuff is placed around the individual’s arm and fills up with air to create pressure around the arm to restrict the amount of blood flow and takes a pulse reading as it releases the pressure. After the individual’s blood pressure has been taken they may be asked to take it at home using a blood pressure kit to see if it is still high and that the first reading was not due to anxiety.
It determines how well your heart pumps with each beat by measuring the percentage of blood leaving your heart
The calorimeter is a large round silver cylinder with a smaller cylinder inside. It has 3 holes around the
The Mayo Clinic’s book on High Blood Pressure was full of detailed facts about blood pressure and what it is. This is extremely significant to the experiment because blood pressure is one of the variables being tested. Understanding blood pressure is one of the key components to receiving accurate results from this experiment. Most of the book is on high blood pressure, which is not necessary for the experiment, but the book still had plenty of useful information about blood pressure itself. The book explains that when the heart beats, a surge of blood is released from the left ventricle. It also tells of how arteries are blood vessels that move nutrients and oxygenated blood from the heart to the body’s tissues. The aorta, or the largest artery in the heart, is connected to the left ventricle and is the main place for blood to leave the heart as the aorta branches off into many different smaller
I removed the hand that was covering the hole of the tube when it was under the water of the bowl. The water remains inside the cylinder. all the way to the top, this will allow us to see how much gas is. given by the amount of water forced out of the tube. The delivery tube was then placed inside of measuring cylinder to.
pressure is supposed to be less than 140mm Hg over 90mm Hg. The first number (in this case 140), represents systolic blood pressure, which. is the pressure in the blood vessels when the heart contracts and the second number (in this case 90) is the pressure between the hearts.
chamber used as a control will be used to measure any changes due to air
A Peak flow meter is a medical device that measures how well your lungs are able to expel air [2.1]. By blowing rough a mouthpiece a peak expiatory flow (PEF) reading can be found. This reading is measured in litres per minute and can be read directly from the device. When the person’s airways are more closed the lower the rate in which air can be blown out. The peak flow meters are used as a simple and efficient way of monitoring how well your lungs are and see if there functioning properly.
Quantitative measurements on gases were first made in a rational manner by the English chemist Robert Boyle (1627 - 1691). The instruments used by Boyle to measure pressure were two: the manometer, which measures differences in pressure, and the barometer, which measures the total pressure of the atmosphere.
The limitations to this vital sign though are to understand and know the different types of thermometers. Many aspects can affect temperature such as exercise, age, stress and surrounding weather and environment. It is important to make sure the patient is relaxed and hasn’t been doing strenuous activities shortly before being assessed (Berman, 2015) . For a healthy adult, the normal body temperature should be around 37°C. Anything over that is considered a fever (Martha Keene Elkin, 2007). Similar to the other vital signs though, everybody is different and someone might have a slightly higher or lower temperature which is normal for them. There are many different types of thermometers. There are oral, rectal, chemical, tympanic and temporal artery thermometers as well as more (Berman, 2015). Depending on the person, different thermometers are used. Aspects such as being a child, not being able to move, being asleep while your temperature needs to be taken can all affect which type of thermometer a health care professional uses. For example, if a patient is asleep then it is very invasive to use an oral thermometer because you would have to open their mouth and then if they wake up they would feel very violated. My worry about taking temperature is which thermometer to use or if I could just use any. The difficult part was finding out whether there were special circumstances to use certain