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Normal urine is sterile. It contains fluids, salts, and waste products. It is free of bacteria, viruses, and fungi.

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Elderly adults are at greatest risk of stroke and myocardial infarction and have the most to gain from prophylaxis. Patients ages 60 to 80 years with blood pressures above 160/90 mm Hg should benefit from antihypertensive treatment.

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More than one-third of adult Americans are obese. Diseases that kill the largest number of people annually, such as heart disease, cancer, diabetes, stroke, and hypertension, can be attributed to diet.

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The first war in which wide-scale use of anesthetics occurred was the Civil War, and 80% of all wounds were in the extremities.

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Lower drug doses for elderly patients should be used first, with titrations of the dose as tolerated to prevent unwanted drug-related pharmacodynamic effects.

Using a sphygmomanometer to measure blood pressure. Using a sphygmomanometer to measure blood pressure.
Blood Flow Blood Flow
Levels of Ghrelin in Human Blood Plasma Levels of Ghrelin in Human Blood Plasma
Model of malaria protozoa in a red blood cell. New parasites are produced and mature in the RBC, ... Model of malaria protozoa in a red blood cell. New parasites are produced and mature in the RBC, ...
cells cells
An electron micrograph of a synapse between two nerve cells. An electron micrograph of a synapse between two nerve cells.
Video: Regulation of GFR: three methods, autoregulation & autoregulation via myogenic mechanism

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