Chapter 7: Measurement Systems & their Equivalents
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| Apothecary | pharmacist or druggist
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| Apothecary system | one of the oldest measurement systems used to calculate drug orders; based on grains and drams
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| Dram | Unit of measure for liquid volume in the apothecary system
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| Grain | Basic unit of measure for solid weight in the apothecary system; compared with one grain of wheat or rice
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| Gram | Basic unit of measure for solid weight in the metric system
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| Household system | System of measurement that uses common kitchen measuring devices
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| Liter | Basic measurement unit of volume (liquid or gas) in the metric system
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| Meter | Basic measurement unit of length in the metric system
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| Metric system | Measurement system based on powers of 10, considered to be the international standard for scientific and industrial measurements; uses grams, liters, meters
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| Milliequivalent | Weight of a drug (usually in milligrams) in a volume (usually liters) of solution
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| Minim | Smallest unit of volume (liquid) in the apothecary system; approximately a drop in household measure
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| Unit | Basic quantity used when calculating desired dosages to indicate the strength of a particular medication; the unit is unique for each drug, based on the drug's strength in a basic measurement system (e.g. grain, gram, milligram)
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| Metric system is also known as | SI "Systeme International" or English measurement system, it is based on the decimal system and is the international standard for scientific and industrial measurements.
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| The three basic units of measure "metric system" | Gram, liter and meter
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| In medical applications, wight usually references | mass (such as the weight of a pathology specimen) or a solid (such as the amount of medication in a tablet or solid (such as the amount of medication in a table or capsule of medicine
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| Volume usually references | a liquid or a gas
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| Length reference | distance
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| kilo= | 1000 units
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| hecto= | 100 units
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| deka | 10 units
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| base unit= | meter, gram, liter
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| deci= | 0.1 (tenths of one unit)
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| Centi= | 0.01 hundredths of one unit
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| milli | 0.001 thousandths of one unit
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| Micro= | 0.000001 millionths of one unit
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| Mnemonic memory phrase | Kids Hates Dogs Because Dogs Chase Mailmen "many many" Mailmen
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| meter to millimeter 1 m= | 1000 mm
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| Meter to centimeter 1 m= | 100 cm
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| Centimeter to millimeter 1 cm= | 10 mm
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| When solving a problem, if you are: GIVEN the smaller unit | divide to find the answer
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| When solving a problem, if you are: GIVEN the larger unit | multiply to find the anser
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| The basic unit of volume in the metric system is | liter
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| Liter to milliliter 1 L= | 1000 mL
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| The base unit used to measure weight (mass) in the metric system is the | gram
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| kilogram to gram 1 kg= | 1000 g
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| Gram to milligram 1 g= | 1000 mg
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| Milligram to microgram 1 mg= | 1000 mcg
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| Liquid volume 60 minims = | 1 fluid dram (f3)
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| Solid weight 60 grains = | 1 dram
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| Liquid volume 8 fluid drams (f3 viii)= | 1 fluid once (f3i)
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| The apothecary basic unit of measure for solid weight is the | grain (gr) 1 grain = approximately the weight of 1 grain of wheat or rice
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| The household measuring system is called | US Customary System of Measurement
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| 1 pound (lb) is | 16 oz
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| 1 teaspoon | 60-75 gtts (drops)
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| 1 tablespoon (T) | 3 t
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| 1 ounce | 2 T
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| 1 cup | 8 oz
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| 1 pint | 2 c; 16 oz
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| 1 quart | 2 pt; 4 c; 32 oz
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| 1 gallon | 4 qt; 8 pt; 16 c; 128 oz
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| 1 foot | 12 in
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| 1 yard | 3 ft; 36 in
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| Milliequivalent aka mEq/L or mEq/mL, mEq/tab,or mEq/cap | pertains to the amount of a solute contained in a solution
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Review the information in the table. When you are ready to quiz yourself you can hide individual columns or the entire table. Then you can click on the empty cells to reveal the answer. Try to recall what will be displayed before clicking the empty cell.
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Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
To hide a column, click on the column name.
To hide the entire table, click on the "Hide All" button.
You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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