Appendix C. Calculations
Math calculation is an integral part of safe nursing care. This section is a review of the conversion tables and sample problems.
The Apothecary System of Measurement
Equivalents/Conversion Factors
• 1 minim = 1 drop
• 1 fluid dram = 60 minims
• 1 fluid ounce = 8 fluid drams
• 1 dram = 60 grains
• 30 ml = 2 tbs (tablespoons)
• 15 ml = 1 tbs
• 5 ml = 1 tsp (teaspoon)
The Household System of Measurement
Equivalents/Conversion Factors
• 1 teaspoon = 60 drops
• 2 tablespoon = 1 ounce
• 1 cup = 8 ounces
• 2 cups = 1 pint
• 2 pint = 1 quart
• 4 quarts = 1 gallon
• 1 pound = 16 ounces
• 1 teaspoon = 15–16 minims = 1 mL (milliliter)
• 2.2 pounds = 1 kilogram = 1000 gm (gram)
Metric Measurements
Equivalents/Conversion Factors ...
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