Fill in the blanks. Refer to Tables 3.4, 3.8, and 3.9 if necessary.
One-half of a gram equals _____________________________________________ milligram(s).
Table 3.4 The Metric System | |||||
Weight | Volume | Equivalents |
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microgram (meg) milligram (mg) gram (g. Cm. gm) kilogram (kg) | milliliter (mL) cubic centimeter (cc) liter (L) | One milliliter (1 mL) is the same as 1 cubic centimeter (1 cc) 1000 milliliters = 1 liter = 1000 cubic centimeters 1000 micrograms = 1 milligram 1000 milligrams = 1 gram 1000 grams = 1 kilogram 100 milligrams = 0.1 gram 10 milligrams = 0.01 gram 1 kilogram = 2.2 pounds | |||
Simple Conversions | |||||
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| Table 3.8 Common Measurement System Equivalents | |||
| Apothecary | Metric | Household | |
Liquid volume | minim (mi 1 minims 15 fluidram 1 fluldrams 4 fluid ounce 1 | 0.06 mL (or cc) 1 mL 4-5 mL 15 mL 30 mL 180 mL 240 mL 500 mL 750 mL 1000 mL | 1 drop (gtt) 15 drops (gtt)a 1 teaspoon (60 gtt) 1 tablespoon 2 tablespoons (1 oz) 1 teacup (6 oz) 1 cup or glass (8 oz) 1 pint (16 oz) 1.5 pints (24 oz) 1 quart (32 oz) | |
Dry weight | gr gr 1 gr gr 15 gr 60 1 oz | 1 mg 60 mg 500 ms (0.5 g) 1000 mg (1 g) 4g 30 g 500 g 1000 g (1 kg) | 1 oz 1.1 lb 2.2 lb |
aThis figure varies; number of drops per milliliter depends on the substance being measured.
Table 3.9 Approximate Conversions Between the Metric and Apothecary Systems |
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| Metric Amount | Apothecary Amount | ||
| 2 g (2000 mg) 1 g (1000 nig) 600mg(0.6g) 100mg(0.1g) 60mg(0.06g) 30mg(0.03g) 1 mg (0.001 g) 0.1 mg (0.0001 g) | gr 30 gr 15 gr 10 gr gr 1 gr gr gr | ||
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Approximation formulas | grains × 60 = milligrams milligrams ÷ 60 = grains | grams × 15 = grains grains ÷ 15 = grams | ||
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500