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29 Cards in this Set
 Front
 Back
Gram is used to measure . . .

weight


Liter is used to measure . . .

volume


Meter is used to measure . . .

length


Doses are calculated using metric measurements that relate to . . .

weight and volume


Of the three things above, what isn't used to calculate doses?

Meter isn't used to calculate doses


International System of Units is sometimes abbreviated . . .

SI
an abbreviation for the French System International d'Unites 

why do we use the metric system and not the Apothecary system?

metric is more precise
Ex babies are weighed in grams & kilograms, and adults in kilograms, not lbs. & oz.s 

what is used to measure someone's height?

linear measurements in meter & centimeters


Kilo

1,000 one thousand times


Centi

0.01 one hundreths part


Milli

0.001 one thousanths part of


Micro

0.000001 one millionith part of


Hecto

100 one hundred times


Deka

10 ten times


Deci

o.1 one tenth


mcg means ?

microgram or µg
BUT don't use µg b/c it looks like mg and can cause lots of trouble, see why? 

is it ml or mL ?

mL
the L is capitalized on purpose 

gram will be used as gm or Gm
what are we talking about? 
Use standard SI notation
Ex gram g microgram mcg milligram mg kilogram kg liter L milliliter mL 

we don't use quanities with a fraction . . .

use: 0.4g or 0/5L
NOT 2/5 g or 1/2 L 

write the abbrevations where?

after the quanity
Ex 1,000 mg NOT mg 1,000 

weight is in grams
1,000 mg = ? 
1 g


Volume uses the what abbreviation?

L for Liter
1,000 mL = 1 L 1mL = 0.001 L 

cubic centimeter is how much space?

the space 1mL of liquid occupies
abbreviated as cc mL and cc are used interchangibly BUT mL is used for volume, not cc! ************************** See, a cup will show mL on its side, not cc's. 

Got to memorize this:
1 kilogram kg = 1,000 g 1 gram g = 1,000 milligrams mg 1 milligram mg = 1,0000 what??? 
mcg


Got to memorize this:
1 Liter = 1,000 milliliters theres the deal with pints and quarts being almost the same as metric. what about this? 
the thing is pints & quarts aren't used around hospital areas BUT you'll run into it in a home enviroment so you have to know it for that


so
1 pint ≈ 500 mL 1 quart ≈ 1,000 mL whats wrong here? 
not exact, both Apothocary units are less than the metric


Conversions b/t Metric Units Now
Rule 1 to convert a smaller unit to a larger one, ...? 
divide by moving the decimal point 3 places to the left
Ex 100mL = 0.1L 

another example of converting a smaller unit to a larger one ...
Ex 50mg = ...? 
50 mg = 0.05g
Placing the zero in front of the decimal is a BIG DEAL 

To convert a larger number to a smaller one,
what? 
multiply by moving the decimal 3 places to the right
Ex 0.75g = 750mg Ex 0.04kg = 40g 