SI Units SI Units in the metric system refer to a dimension, such as weight (or mass), volume, and length. Modified and adopted for uniform measurement in most countries, now recommended for all medication doses in the US by TJC and by ISMP. Modern Metric System A popular name for the International System of Units (SI). ISMP Institute for Safe Medication Practices, a non-profit organization that educates the health care community and consumers about safe medication practices. Their use can create a safety risk for measuring medication doses because of inconsistent capacities. Household System of Measurement Utensils used in the home, such as cups, teaspoons, tablespoons, droppers, etc. The abbreviation for liter is preferably capitalized, L, to avoid confusion with the number 1. Memorize these base units of measurement. Teaspoon A does not equal teaspoon B.īase Units of Metric Measurement Three base units are commonly used for metric measurement of medications to indicate weight (or mass), volume, and length: gram ( g), liter ( L), and meter ( m). Nurses need to know the metric-household equivalents for home care practice, for patient and family discharge and home-care teaching. Household measures are used for some medications taken at home, primarily liquids. It also includes examples of household measurements. This chapter focuses on understanding and interpreting the metric measurements used in medication orders and records, on medication labels, in laboratory reports, and nursing practice. “metrication” progress except in the scientific community. ![]() Resistance to change and expense involved have slowed the U.S. ![]() It is required for admission to the European Union. ![]() Known as the International System of Units (SI), it is the modern form of the former French metric system. It has been adopted by most countries of the world for standardized weights and measurements. With a little practice and repetition, nurses will be very comfortable with it. The modern metric system is logical, precise, and easy to work with because it’s a standardized decimal measurement system using multiples (powers) of 10 similar to our monetary structure which is also based on a decimal structure. Modern metric measurements have almost completely replaced an old English imprecise Apothecary system * in order to reduce medication errors.
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