Pharmacy Tech Conversions by me Flashcards
GRAIN(GR) TO MILLIGRAM(MG)= X BY 60
GRAMS(G) TO MILLIGRAMS(MG)= X BY 1000 or move deciaml point 3 places to the right
MILLIGRAMS(MG) TO GRAMS(G)= DIVIDE BY 1000 or move 3 places to the left
MILLILITERS(ML) TO GRAMS(G)= DIVIDE BY 1000
OUNCES(OZ) TO GRAMS(G)= X BY 28.35
MILLILITERS(ML) TO FLUID OZ= DIVIDE BY 30
FLUID OZ TO MILLILITERS(ML)= X BY 30
Household (Avoirdupois) system 1 tsp = 5 ml , 60 gtt(s) 1 tbsp = 15 ml 1 oz = 30 ml / cc 1 gallon (128 oz) = 3800 ml 1 quart (32 fluid oz)(2 pints)= 960 ml 1 pint (16 fluid oz)= 480 ml or 473 ml 1 cup (8 fluid oz)= 240 ml 1 pound = 453.59237 grams 1 drop = 1 minim
Metric System
1g = 1000 mg
1mg = 1000 mcg
1g = 1000,000 mcg
1kg = 1000 g
1ml = 20 gtts (ear,eye meds)
480 ml = 1pint, 16 oz
1ml = 100 units (insulin)
1L = 1000 ml
1kg = 2.2 Lbs
453.59237 grams = 1 pound
Apothecary System
1 gr = 65 or 60 mg
15 gr = 1 g
1 dr = 4 ml
1/2 gr = 30 mg
5 gr = 300-325 mg
10 gr = 600-650 mg
1/60 gr = 1 mg
8 dr, 1 oz = 30 gm
3 Scruples = 1 oz, 1 dr
1 Scruple = 20 gr
Fraction into a %
Ex} 6/9
6 divide by 9 = 0.66666 X 100 = 67%
Fraction into a decimal
Ex} 1/4
1 divide by 4 = 0.25
Decimal into a %
Ex} 1.5
1.5 X 100 = 150%
% into a decimal
Ex} 150%
150 / 100 = 1.5
Grains fraction into mg
Ex} 1/150 gr
1 divide by 150 = 0.00666 X 60 = 0.4 mg
Ratios are the same as fractions
Ex} 1:20 = 1/20
Extra measurements used in hospital setting
International Unit (IU) Milliequivalent (mEq)