CALCULATIONS & CONVERSIONS Flashcards
1/3 + 1/6 = ?
6 is a multiple of 3.
Multiply 1/3 x 2 to get common denominator.
1 x 2 = 2 3 x 2 = 6 1/3 x 2 = 2/6
Then add. 2/6 + 1/6 = 3/6
4/12 - 1/6 = ?
12 is a multiple of 6.
Multiply 1/6 x 2 to get common denominator 12.
1 x 2 = 2 6 x 2 = 12 1/6 x 2 = 2/12
Then subtract. 4/12 - 2/12 = 2/12
1/3 + 3/9 =
6/9
3/4 + 1/8 =
7/8
8/16 - 1/4 =
4/16
3/16 + 5/4
23/16
15/16 - 1/8 =
13/16
2/3 + 1/12 =
9/12
9/10 - 1/5 =
7/10
12/14 - 3/7 =
6/14
9/30 + 4/10 =
21/30
2/6 x 5/7 =
10/42
5/10 x 6/8 =
30/80
3/8 x 2/3 =
6/24
5/12 x 1/3 =
5/36
5/3 x 1/6 =
5/18
3/9 x 2/4 =
6/36
2/8 x 3/4 =
6/32
2/4 x 1/3 =
2/12
9/10 x 5/8 =
45/80
1/8 ÷ 5/6 =
6/40
9/10 ÷ 3/4 =
36/30
2/4 ÷ 3/7 =
14/12
3/5 ÷ 7/4 =
12/35
7/12 ÷ 1/9 =
63/12
6/3 ÷ 7/8 =
48/21
2/7 ÷ 3/8 =
16/21
9/12 ÷ 3/8 =
72/36
1/5 ÷ 2/7 =
7/10
Name the three main systems of measurement used in Pharmacy.
Metric, Apothecary, and Avoirdupois
Name the units used to describe Volume in the Avoirdupois System.
Teaspoon, tablespoon, ounce, pint, quart, gallon.
Name the units used to describe Weight in the Avoirdupois System.
Ounce and pound.
Name the units used to describe Volume in the Metric System.
Microliter, milliliter, liter
Name the units used to describe Weight in the Metric System.
Microgram, milligram, gram, kilogram.
Name the units used to describe Volume in the Apothecary System.
Minim, and fluidounce.
Name the units used to describe Weight in the Apothecary System.
Grain.
True or False
The Apothecary pound is equal to the Avoirdupois pound.
False.
The are not equal.
Name the meanings of the following prefixes: micro milli centi deci kilo
one millionth one thousandth one hundredth one tenth one thousand
Provide the appropriate metric conversion factors for the following:
1 mg = \_\_\_\_ mcg \_\_\_ g = 1000 mg 1 kg = \_\_\_\_ g \_\_\_ L = 1000 ml 300 mg = \_\_\_\_ g 1500 ml = \_\_\_\_ L 3 kg = \_\_\_\_ g
1 mg = 1000 mcg 1 g = 1000 mg 1 kg = 1000 g 1 L = 1000 ml 300 mg = 0.3 g 1500 ml = 1.5 L 3 kg = 3000 g
Provide the appropriate avoirdupois conversion factors for the following:
\_\_ teaspoons (tsp) = 1 tablespoon (tbsp) \_\_ tbsp = 1 ounce (oz) \_\_ oz = 1 pint (pt) \_\_ pt = 1 quart (qt) \_\_ qt = 1 gallon (G) \_\_ oz = 1 pound (lb)
3 teaspoons (tsp) = 1 tablespoon (tbsp) 2 tbsp = 1 ounce (oz) 16 oz = 1 pint (pt) 2 pt = 1 quart (qt) 4 qt = 1 gallon (G) 16 oz = 1 pound (lb)
Convert the following measurements:
1 tsp = \_\_\_\_\_ ml 1 tbsp = \_\_\_\_\_ ml 1 oz = \_\_\_\_\_ ml 1 pt = \_\_\_\_\_ ml 1 G = \_\_\_\_\_ ml
1 tsp = 5 ml 1 tbsp = 15 ml 1 oz = 30 ml 1 pt = 480 ml 1 G = 3840 ml
Convert the following measurements:
1 g = \_\_\_\_\_ gr 1 gr = \_\_\_\_\_ mg 1 kg = \_\_\_\_\_ lb 1 lb = \_\_\_\_\_ g 1 oz = \_\_\_\_\_ g
1 g = 15.4 gr 1 gr = 60 mg 1 kg = 2.2 lb 1 lb = 454 g 1 oz = 30 g
Convert the following measurements when performing compounds:
1 oz = \_\_\_\_\_ ml 1 pt = \_\_\_\_\_ ml 1 G = \_\_\_\_\_ ml 1 gr = \_\_\_\_\_ mg 1 oz = \_\_\_\_\_ g
1 oz = 29.57 ml 1 pt = 473 ml 1 G = 3784 ml 1 gr = 64.8 mg 1 oz = 28.35 g
What does mEq stand for?
Milliequivalent = one thousandths of an Eq
1 Eq = ?
molecular salt weight ÷ ion charge
How many ml are in 2.3 oz?
69 ml