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chapter5

QuestionAnswer
alligation the compounding of two or more products to obtain a desired concentration
apothecary system a weight-based measurement system developed by the Romans
Arabic system a mathematical system using numbers, fractions, and decimals
avoirdupois system a system of measurement that originated in France and is used for common measurements in the United States; units of measure include the foot, mile, grain, pound, and ounce
body surface area (BSA) a measurement related to a patient's weight and height, expressed in meters squared (m2), and used to calculate patient-specific dosages of medications
Celsius temperature scale the temperature scale that uses zero degrees as the temperature at which water freezes at sea level and 100 degrees as the temperature at which it boils
decimal any number that can be written in decimal notation using the integers 0 through 9 and a point (.) to divide the "ones" place from the "tenths" place (e.g., 10.25 is equal to 10 1/4)
denominator the number on the bottom part of a fraction that represents the whole
Fahrenheit temperature scale the temperature scale that uses 32 degrees as the temperature at which water freezes at sea level and 212 degrees as the temperature at which it boils
fraction a portion of a whole that is represented as a ratio
grain a dry weight unit of measurement in the apothecary system (for example, 5 grains [5 gr] of aspirin are equivalent to approximately 325 mg)
gram the metric system's base unit for measuring weight
household system a system of measurement based on the apothecary system; units of measure include the ounce, pound, drop, teaspoon, tablespoon, and cup
leading zero a zero that is placed in the ones place in a number that is less than one and is being represented by a decimal value
liter the metric system's base unit for measuring volume
meter the metric system's base unit for measuring length
metric system a measurement system based on subdivisions and multiples of 10; made up of three basic units: meter, gram, and liter
military time a measure of time based on a 24-hour clock in which midnight is 0000, noon is 1200, and the minute before midnight is 2359; also referred to as 24-hour time international time
numerator the number on the upper part of a fraction that represents the part of the whole
percent the number or ratio per 100
powder volume (pv) the amount of space occupied by a freeze-dried medication in a sterile vial, used for reconstitution; equal to the difference between the final volume (fv) and the volume of the diluting ingredient, or the diluent volume (dv)
proportion a comparison of equal ratios; the product of the means equals the product of the extremes
ratio a comparison of numeric values
Roman system a mathematical system in which numerals are expressed in either capital letters or lowercase letters
specific gravity the ratio of the weight of a substance compared to an equal volume of water when both have the same temperature
Created by: softcrylic