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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Pulse Pressure Definition Some evidence suggests that pulse pressure is a better predictor of clinical outcome than the systolic or diastolic blood pressure alone. High Blood Pressure - Correlation between blood pressure and pulse While my blood pressure is in the 110s/70s, my resting pulse falls in the 60s. If my blood pressure dips to 90s/60s my resting pulse goes to somewhere in Pulse Pressure Good Predictor of Heart Disease 9/24/00 The measurement of pulse pressure is the difference of the two blood pressure measurements -- the systolic (the higher number) and diastolic (the lower My ParenTime | Checklist #121 | Blood Pressure & Pulse Rate Checklist My ParenTime | Checklist #121 | Blood Pressure & Pulse Rate Checklist - Are you ready to get informed, educated, & entertained? At My ParenTime you'll find The relation of ambulatory blood pressure and pulse rate to PURPOSE: To examine the association of ambulatory blood pressure (ABP) and ambulatory pulse rate (APR) with diabetic retinopathy (DR) in persons with type 1 Emergency Medicine Only during the last 10 years have systolic blood pressure and pulse pressure been recognized as significant prognostic indicators of cardiovascular risk. Vital Signs (Body Temperature, Pulse Rate, Respiration Rate, Blood body temperature; pulse rate; respiration rate (rate of breathing); blood pressure (Blood pressure is not considered a vital sign, but is often measured Blood pressure - Wikipedia, the free encyclopedia Arterial blood pressure (BP) is most accurately measured invasively. .. Low arterial pressure, especially low pulse pressure, is a sign of shock and Go Ask Alice!: What do blood pressure/pulse numbers mean? Alice, I recently gave blood and I found out my pulse and blood pressure. Is there a chart that I can follow that tells me what this all means? Blood Pressure & Pulse There are two important vital statistics that doctors use to assess the immediate health of your heart: blood pressure and pulse. These. Reading Blood Pressure & Pulse Blood pressure is measured in millimetres (mm) of mercury (Hg), and pulse rate in beats per minute. The picture shows a top reading of 122, a bottom reading |
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