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. |
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Home Blood Pressure Test A blood pressure measurement is taken by temporarily stopping the flow of blood in an artery (usually by inflating a cuff around the upper arm) and then Home Monitoring of High Blood Pressure Requires careful cuff placement and arm positioning for accurate operation, Measures blood pressure and pulse from the wrist; Automatic cuff inflation Learning About Health & Illness Placement of Blood Pressure Cuff. Copyright Y 2005 Nucleus Communications, A blood pressure measurement could worsen an injured or swollen arm. Amazon.com: Omron HEM-637 Wrist Blood Pressure Monitor with With the APS system, this wrist unit will ensure correct cuff placement before your blood pressure is taken. The monitor is incredibly easy to use -- simply Placement of Blood Pressure Cuff (Sphygmomanometer) - Medical This medical exhibit pictures the placement of a sphygmomanometer, or blood pressure cuff, on the right arm of a standing male figure visible from the waist Recommendations for blood pressure measurement in humans and In women who have had a mastectomy, blood pressure can be measured in both arms unless there is lymphedema. Cuff Placement and Stethoscope Evaluation of a new oscillometric blood pressure monitor in Sites of cuff placement for indirect measurements were identified as metacarpus, Clinical relevance: Noninvasive blood pressure measurements with a new Evaluation of an oscillometric blood pressure monitor on Evaluation of an oscillometric blood pressure monitor on anesthetized cats and the effect of cuff placement and fur on accuracy. LifeSource Manual Blood Pressure Monitors - blood pressure monitor LifeSource blood pressure monitors: Economical manual inflation blood pressure monitors from Arrow indicator on cuff ensures proper cuff placement Panasonic Upper Arm Blood Pressure Monitor With Elbow Support No Cuff Placement or Adjustment. No Tubes. No Hassle! Daily blood pressure monitoring is made simple with the EW3152A upper arm blood pressure monitor. Blood Pressure Testing and Measurement - NYU Medical Center, NYU Blood pressure testing is used to measure the force of blood being pumped through the arteries by the heart and the Placement of Blood Pressure Cuff |
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