Standard Operating Procedure for a mercury sphygmomanometer May 20, 2014 Table of Contents 1. Purpose…………………………………………………………3 2. Applicability/Scope…………………………………………… 3 3. Summary of Procedures……………………………………….3 4. Definitions.……………………………………………………. 3 5. Personnel qualifications/Responsibilities.……………….…….3 6. Procedure 6.1. Operation………….……………………………………..4 6.2. Maintenance……………………………………………..5 7. Precautions 7.1. Accurate measurement 7.1.1. Preparing the patient……………………………5 7.1.2. Surroundings……………………………………6 7.2. Safe handling of the device.……………..……………….6 8. References………………………………………………………7 1. Purpose The purpose of this standard operating procedure (SOP) is to ensure the correct use of the mercury sphygmomanometer when taking BP measurements in this laboratory 2. Applicability/Scope: This SOP is for the use of the staff and students using the Mercury Sphygmomanometer at Nutrition Research laboratory at Massey University. New Zealand. 3. Summary of Procedures: BP measurements taken using a mercury sphygmomanometer involve the inflation and deflation of an occluding bladder located inside a cuff that is wrapped around the patient’s arm. The mercury sphygmomanometer is operated manually, with inflation by means of a bulb and deflation by means of a release valve, both of which are controlled by the hand. The pump and control valve are connected to the inflatable bladder and to the sphygmomanometer. 4. Definitions: 4.1. Mercury Sphygmomanometer: A device used to measure BP. It consists of an inflatable cuff, a hand bulb with a deflator valve and a mercury column to display the obtained BP readings (Martin & McFerran... ... middle of paper ... ...ien, E. (2001). ABC of hypertension - The pathophysiology of hypertension. British Medical Journal, 322(7291), 912-916. doi: 10.1136/bmj.322.7291.912 Martin. E. A. & McFerran. T. A. (2014). A dictionary of food and nutrition Oxford Reference. Eds. Martin, E., & McFerran, T. Retrieved 22 May. 2014, from http://www.oxfordreference.com/view/10.1093/acref/9780199666379.001.0001/acref-9780199666379-e-8425. MHRA. (2013). BP Measurement Devices. Device Bulletins: MHRA. Retrieved May 18, 2014, from http://www.mhra.gov.uk/Publications/Safetyguidance/DeviceBulletins/CON2024245 Rudolf Riester GmbH. Riester the familiar way instructions: Mercurial sphygmomanometers and cuffs. Jungingen (Germany): Riester. Warrington, N (2013). Standard Operating Procedure: Artsana Mercury Sphygmomanometer. University of Malta Faculty of Medicine & Surgery Pharmacy Department
He quickly hooks up an IV fills it with diet water and waits. Ten tense minutes pass before the beeping of the machines resume their natural rhythm and the patient is stabilized. Suddenly, the patient begins to radiate a pale, golden light.
Sclauser Pessoa, I. B., Costa, D., Velloso, M., Mancuzo, E., Reis, M. S., & Parreira, V.F.
Pre-exercise: For this activity, each group member needed to be familiar with taking and reading another group member’s blood pressure. Many types of instruments exist for measurin...
The causes of hypertension are unknown. However; hypertension can be classified into two categories primary and secondary. Primary (essential) hypertension is increas...
Hypertension is diagnosed by measuring the blood pressure by a device known as the sphygmomanometer. Blood pressure is taken and presented by the systolic blood pressure and diastolic blood pressure. The systolic and diastolic numbers will be recorded and compared to a chart of values. At the same time, doctor would also ask for patient’s family history of hypertension and the associated risk factors such as high cholesterol food intake.
Every popular belief of food and nutrition is carefully analyzed and debunked by Pollan using various examples from cultural habits, basic scientific processes and relevant studies and experiments. The vast amount of information from numerous, and likely fraudulent, sources reflect the message he is trying to convey: that food is naturally too complicated to study and perfect in science. Each chapter flows smoothly into the next topic as explanations become clearer and more in-depth. His knowledge in the topic and history is strongly demonstrated as well, building his credibility with his audience.
" Journal of Clinical Hypertension 13.5 (2011): 351-56. EBSOHost.com - a. Web. The Web.
Wardlaw, G.M. and Smith. Contemporary Nutrition: Issues and Insights. 5th Edition. Boston: McGraw-Hill, pp 85, 2004.
Since the inception of pressurized systems to produce and transmit energy, it has been a constant goal to find safe, dependable means of relieving pressure. The simple, inexpensive, spring loaded relief valves has been manufactured for over a hundred and fifty years, performing its job with varying degrees of reliability over that time period.
If all this is done, we can ensure that we will get an accurate reading. Safety I will always wear safety goggles to avoid chemicals going into my eyes. All coats, bags and stools must be kept away from the area. Hair is to be tied back and ties tucked away at all times. GRAPH The practice experiment turned out rather well, and the results are similar to that of the other two experiments I carried out after.
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).
Blood pressure is measured by two pressures; the systolic and diastolic. The systolic pressure, the top number, is the pressure in the arteries when the heart contracts. The diastolic pressure, the bottom number, measures the pressure between heartbeats. A normal blood pressure is when the systolic pressure is less than 120mmHg and Diastolic pressure is less than 80mmHg. Hypertension is diagnosed when the systolic pressure is greater than 140mmHg and the diastolic pressure is greater than 90mmHg. The physician may also ask about medical history, family history, life style habits, and medication use that could also contribute to hypertension
Fischbach, Frances, A Manual of Laboratory & Diagnostic Tests, 4th ed., J. B. Lippincott Company, Philadelphia
When the liquid level in both arms is the same, the pressure of the sample of gas inside the closed end must equal the pressure of the external atmosphere since the downward force on the two columns of liquid is then equal. When the liquid levels are unequal, the pressures must differ. The difference in pressure can be measured in units of length of the vertical column of liquid. The mm Hg, or its modern version the torr, originated in this use of the manometer. Mercury is particularly convenient for use in manometers (and barometers) because at room temperature it has low vapor pressure, does not wet glass, and has a high density. Other liquids such as linseed oil or water have also been used in manometers.
Schnall, P., Landsbergis, P., Belkic, K., Warren, K., Schwartz, J., & Pickering, T. (1998). Findings In The Cornell University Ambulatory Blood Pressure Worksite Study: A Review. Psychosomatic Medicine, 60, 697.