What is Cholesterol?

Cholesterol is a sterol (a combination steroid and alcohol). Cholesterol is a lipid found in the cell membranes of all tissues, and it is transported in the blood plasma of all animals. Because cholesterol is synthesized by all eukaryotes, trace amounts of cholesterol are also found in membranes of plants and fungi.The name originates from the Greek chole- (bile) and stereos (solid), and the chemical suffix -ol for an alcohol, as researchers first identified cholesterol in solid form in gallstones by Francois Poulletier de la Salle in 1769. However, it is only in 1815 that chemist Eugene Chevreul named the compound "cholesterine".[2]Most of the cholesterol is synthesized by the body and some has dietary origin. Cholesterol is more abundant in tissues which either synthesize more or have more abundant densely-packed membranes, for example, the liver, spinal cord and brain. It plays a central role in many biochemical processes, such as the composition of cell membranes and the synthesis of steroid hormones. Cholesterol is insoluble in blood, but is transported in the circulatory system bound to one of the varieties of lipoprotein, spherical particles which have an exterior composed mainly of water-soluble proteins. The main types, low-density lipoprotein (LDL) and high-density lipoprotein (HDL) carry cholesterol from and to the liver.According to the lipid hypothesis, abnormally high cholesterol levels (hypercholesterolemia) and abnormal proportions of LDL and HDL are associated with cardiovascular disease by promoting atheroma development in arteries (atherosclerosis). This disease process leads to myocardial infarction (heart attack), stroke and peripheral vascular disease. As high LDL contributes to this process, it is termed "bad cholesterol", while high levels of HDL ("good cholesterol") offer a degree of protection. The balance can be redressed with exercise, a healthy diet, and sometimes medication.

auscultatory blood pressure
IngentaConnect Isolated Elevation of Diastolic Blood Pressure
The purpose of this study was to assess the accuracy of auscultatory blood pressure measurements in patients with an uncommonly narrow pulse pressure,

Confounders of auscultatory blood pressure measurement
of the auscultatory blood pressure measurement, allow- .. W, Dunning AJ, Accuracy of auscultatory blood pressure measure-. ment with a long cuff. BMJ.

Introduction of the Blood Pressure Cuff into U.S. Medical Practice
Auscultation to measure blood pressure found wide acceptance as a skilled practice for . Auscultatory blood-pressure determinations. Arch Intern Med.

Conventional sphygmomanometry: technique of auscultatory blood
Conventional sphygmomanometry: technique of auscultatory blood pressure measurement - Blood pressure measurement, part 2 - ABC of Hypertension from British

Accuracy of auscultatory blood pressure measurements in
Accuracy of auscultatory blood pressure measurements in hypertensive and obese subjects. PE Nielsen, B Larsen, P Holstein and HL Poulsen

.A COMPARISON OF THE AUSCULTATORY BLOOD PRESSURE PHENOMENON IN MAN
blood pressure. In the auscultatory. method described by Korotkoff. in 1905. we now distinguish Auscultatory. Blood Pressure. 429. Lang and Manswetowa

Arch Pediatr Adolesc Med -- Abstract: Differences in blood
The findings of this study suggest that published normative levels of auscultatory blood pressure may be inappropriate as a standard when blood pressure

Auscultatory Blood Pressure Measurementâ”Effect of Pressure on the
Excessive pressure on the stethoscope head in auscultatory blood pressure measurement does not affect systolic blood pressure value but it does erroneously

Accuracy of auscultatory blood pressure measurement with a long cuff.
With each larger cuff, in terms of bladder surface area, auscultatory blood pressure decreased a few mm relative to intra-arterial pressure both for

A Centenary of Auscultatory Blood Pressure Measurement: A Tribute
A Centenary of Auscultatory Blood Pressure Measurement: A Tribute to Nikolai Korotkoff Dobrin Paskaleva, Anna Kirchevab, Stefan Krivoshievc

Journal of Human Hypertension - Automated oscillometric blood
Automated oscillometric blood pressure versus auscultatory blood pressure as a predictor of carotid intimaâ“medial thickness in male firefighters

Cardiac Auscultation of Heart Murmurs - WAV File Download Package
Cardiac Auscultation of Heart murmurs / CD, LISTOHEARMUR. Stethoscopes ⢠Diagnostic Sets Blood Pressure Instruments & Disposables ⢠EMS ⢠Lab Equipment

Narrowband auscultatory blood pressure measurement - Biomedical
Elements of a narrowband auscultatory blood pressure measurement system when microphone spacing is chosen to be half the wavelength. The scaling

Education: How to use a stethoscope
This is the systolic blood pressure. You should then lower the cuff This auscultatory gap, if not appreciated, may cause you to overestimate the

Cardiovascular Examination
Rate and Rhythm; Amplitude and Contour; Auscultation for Bruits; Blood Pressure. Interpretation. Jugular Venous Pressure; Precordial Movement; Auscultation

ABC of hypertension: Blood pressure measurement -- Beevers et al
The array of techniques available today owe their origins to the conventional technique of auscultatory blood pressure measurement, and these new techniques

Blood pressure - Wikipedia, the free encyclopedia
The equipment is functionally similar to that of the auscultatory method, but with an electronic pressure sensor (transducer) fitted in to detect blood flow

Auscultation
Non-invasive blood pressure recordings are commonly obtained using peripheral blood flow occlusion, oscillometric, auscultation, tonometry or volume

ABC of hypertension: Blood pressure measurement -- Beevers et al
The technique of auscultatory blood pressure measurement is a complicated one that is often taken for granted. Instruction to medical students and nurses


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