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.

blood pressure measurement techniques
History of blood pressure measurement
The first recorded instance of the measurement of blood pressure was in 1733 by the A crucial difference in Korotkoff's technique was the use of a

MedlinePlus Medical Encyclopedia: Blood pressure
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

UpToDate Technique of blood pressure measurement in the diagnosis
TECHNIQUE OF MEASUREMENT ALTERNATIVE SITES FOR MEASUREMENT βΆ Leg blood pressure βΆ Wrist blood pressure BLOOD PRESSURE MEASUREMENT AT HOME OR WORK

Recommendations for Blood Pressure Measurement in Humans and
Part 2: Blood Pressure Measurement in Experimental Animals: A Statement for .. The use of direct measurement techniques has enabled the mapping of

Blood Pressure Measurement: Recommendations of the BHS
Blood Pressure Measurement. Recommendations of the British Hypertension Society. Don't forget the "ABC of hypertension" series in the BMJ April 2001 Issues

Blood Pressure Testing and Measurement
The only way to find out if you have high blood pressure is to have your blood pressure checked. Your doctor or another qualified health professional should

Accurate blood pressure measurement: Why does it matter
Despite the importance of blood pressure assessments, current guidelines for patient preparation and measurement technique are rarely followed,

Blood Pressure Monitoring at Home -- familydoctor.org
Because the digital monitor is automatic, it is the most popular blood-pressure measuring device. The blood pressure measurement is easy to read,

GUIDELINE 3: MEASUREMENT OF BLOOD PRESSURE IN ADULTS
SMPB devices142 are varied in design from manual to fully automated and in blood pressure measurement technique (mercury, aneroid, oscillometric).

Recommendations for Blood Pressure Measurement in Humans and
For accurate blood pressure measurement, the observer must: (1) be properly trained in the techniques of blood pressure measurement; (2) use an accurate and

Proper Technique for Blood Pressure Measurement - How to Measure
The ability to correctly measure blood pressure is a specialized skill that requires careful attention to many important details. A wide variety of factors

Blood pressure: A chart explaining your blood pressure reading
Blood pressure readings are grouped into four categories. This chart explains the readings.

Blood pressure measurement
Most people have had their blood pressure taken at some time. It is a simple and painless procedure that gives a lot of useful information about the heart

3. Blood pressure measurement
Before the blood pressure measurement begins the following conditions should be . test that could be based on similar techniques as the training methods,

Accuracy of Blood Pressure Measurement
Background: Equipment, physiologic, and technique factors can influence the accuracy of blood pressure measurement. The current study was designed to

Blood pressure - Wikipedia, the free encyclopedia
Arterial blood pressure (BP) is most accurately measured invasively. Invasive arterial pressure measurement with intravascular cannulae involves direct

ABC of hypertension: Blood pressure measurement -- Beevers et al
The measurement of blood pressure in clinical practice by the century-old technique of Riva-Rocci/Korotkoff is dependent on the accurate transmission and

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 measurement techniques
blood pressure record card
blood pressure and obesity
blood pressure doctor
blood pressure monitor and pharmacy