Fiber is a type of carbohydrate that is not digestible (e.g., it will pass through the digestive system without being absorbed). The NCEP ATPIII guidelines recommend that soluble (viscous) fiber be included in the diet for the prevention and treatment of elevated blood lipid concentrations. Sources of soluble (viscous) fibers include

Subendocardial ischemia usually produces

In the ECG strip shown below, what abnormality is indicated?

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Athletes who exercise in the heat and humidity have a special need for fluid replacement.
Current guidelines suggest that athletes should