Page 450 - Saunders Comprehensive Review For NCLEX-RN

kilogram: kg
gram: g
milligram: mg
microgram: mcg
milliequivalents: mEq

Equivalents

1 mcg = 0.000001 g
1 mg = 1000 mcg or 0.001 g
1 g = 1000 mg
1 kg = 1000 g
1 kg = 2.2 lb
1 mL = 0.001 L

Box 14-3

Conversion Between Metric Units

Problem 1

Convert 2 g to milligrams.
Solution

Change a larger unit to a smaller unit:
2 g = 2000 mg (multiply by 1000 or move decimal point 3 places to the right)
Problem 2

Convert 250 mL to liters.
Solution

Change a smaller unit to a larger unit:
250 mL = 0.25 L (divide by 1000 or move decimal point 3 places to the left)

Box 14-4

Ratio and Proportion

Ratio: The relationship between 2 numbers, separated by a colon; for example,
1:2 (1 to 2).
Proportion: The relationship between 2 ratios, separated by a double colon (::) or
an equal sign (=).

Formula:

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