The nurse is calculating a drug dosage and converting from milligrams to grams. What measurement system is the nurse using?
A) Metric system
B) Apothecary system
C) Household system
D) Avoirdupois system
A
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The metric system is the most widely used system of measurement in the world; it is based on the decimal system. The gram is the basic unit of solid measure, and the liter unit of liquid measure. The apothecary system uses the grain as the basic unit of solid measure. The household system uses the pound as the basic unit of measure. The avoirdupois system uses ounces and grains, but it is mostly used by drug manufacturers for bulk medications.
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