Math for Nursing 2

Math for Nursing 2

the math you need to succeed

Metric System Conversions

Conversions are essential and the nurse should know how to do them, particularly those involving the metric system. Metric is the measurement system used in medical settings. Nurses need to be able to convert from one system of measurement to another, such as from the metric system to the English system and vice versa.

• Staircase method instructions-Look at the prefix you have and count how many steps you need to get to the prefix you want.

• Then move the decimal that many steps and in the same direction to convert the number to the new unit.

• Example  52 mm to km

  starting at milli- it is 6 steps to the right to get to kilo

  move the decimal six places to the left

  so 52 becomes 0.000052km

gram

a unit of measuring mass

centi

.01

deci

.1

deca

10

hecto

100

kilo

1000

volume

the amount of space an object occupies

milliliter

worth 1/1000 of a liter

liter

a unit of measuring volume

milligram

worth 1/1000 of a gram

gram

a unit of measuring mass

kilogram

worth 1,000 grams

centimeter

worth 1,000 grams

kilometer

worth 1,000 meters

meter

a unit of measuring length

mass

the amount of space an object occupies

metric

a form of measurement based on the base ten number system

Multiple Choice

The capacity of a tablespoon is about

• 15 mL

• 150 mL

• 1.5 liters

• 15 liters

Multiple Choice

What does kilo mean?

• thousand
• hundred
• ten
• ten thousand

Multiple Choice

In the metric system what is a liter used to measure?  

• solids
• liquids

Multiple Choice

Which of the following is the appropriate measurement for volume ?

• 56 mL

• 10 grams

• 47 centimeters

• 4 quarts

Multiple Choice

4 liters is ______________ 400 milliliters

• greater than

• less than

• equal to

• stronger than

Multiple Choice

A milliliter is _____________ times smaller than a liter.

• 1

• 10

• 100

• 1,000

Multiple Choice

What is the abbreviation for milliliters?

• ML
• Ml
• mL
• ml

Multiple Choice

What would you use to measure the liquid in a coffee cup?

• liter
• mililiter
• gallon

Multiple Choice

What is the volume of water in this graduated cylinder?

• 47 mL
• 50 mL
• 45 mL
• 45.4 mL

Multiple Choice

What is the volume?

•  50.0 mL
• 53.0 mL
• 54.0 mL

Multiple Choice

The basic unit of metric volume is called a_____.

• Kilogram
• milligram
• Liter
• milliliter

Multiple Choice

The correct abbreviation for milliliter is..

• ML
• Ml
• mL
• ml

Multiple Choice

8,000 g = ___________ kg

• 8

• 80

• 800

• 8,000

Multiple Choice

1 L = _______ mL

• 1
• 10
• 100
• 1000

Multiple Choice

42 L = ___mL

• 4,200
• .0042
• 4.20
• 42,000

Multiple Choice

285 kg = ____ g

• 285,000
• 285
• 2,850
• 28,500

Multiple Choice

If 4 apples have a mass of 1 kg, about how many grams is each apple?

• 1,000g
• 4,000 g
• 250 g
• 325 g

Multiple Choice

Which amount is less 250 mL or 250 L?

• 250 mL
• 250 L

Multiple Choice

Which is greater, 200 mm or 1 m?

• 200 mm
• 1m

Multiple Choice

The American Heart Association recommends you should not eat more than about 2,000 milligrams of sodium (salt) a day. How many grams is this?

• 2 grams

• 20 grams

• 200 grams

• 20,000 grams

Multiple Choice

A child needs to take 10 milliliters of medicine for an ear infection. How many centiliters is this?

• 1 centiliter

• 100 centiliters

• 1,000 centiliters

• less than 1 centiliter

Multiple Choice

A common size for sodas to be sold in is 2 liters. How many deciliters is this?

• 20 deciliters

• 200 deciliters

• 2,000 deciliters

• less than 1 liter

Multiple Choice

24,000 grams = _____ kilograms

• 24

• 240

• 2,400

• 240,000

Multiple Choice

2 liters = _____ milliliters

• 20

• 200

• 2,000

• 20,000

Multiple Choice

40 decimeters = _____ meters

• 4 meters

• 400 meters

• 4,000 meters

• less than 1 meter