BCC Pharmacy Tech

 Historically 2 different systems were used…so we must know both.  Memorize the equivalents  Sometimes conversions across systems is required

Apothecary Equivalents 1 fl oz = 30 mL 6 fl oz = 180 mL 8 fl oz = 240 mL 16 fl oz or 1 pt = 500 mL 32 fl oz or 1 qt = 1000 mL or 1 L 1 gr =60 or 65 mg 15 gr = 1 g 2.2 lb = 1000 g or 1 kg

Example 150 mL equals how many fl oz? 30 mL : 1 fl oz :: _____mL : ____ fl oz

Celsius & Fahrenheit Fahrenheit to Celsius Subtract 32 Divide by 1.8 Celsius to Fahrenheit Multiply by 1.8 Add 32

Example * F equals ____ * C? C : F - 32 :: 5: 9

To do…  Memorize the tables of approximate equivalents.  Study forming proportions  Complete worksheet  Check answers  Review, as necessary  Evaluate