13final Review Essay

Submitted By christycolgan
Words: 662
Pages: 3

FINAL REVIEW
RNRS 150
FALL 2013

CONVERSIONS
DECIMAL FRACTION PERCENT

RATIO

1.5
3/4
12%
2:7

CONVERSIONS
DECIMAL FRACTION PERCENT

RATIO

1.5

1 1/2

150%

3:2

0.75

3/4

75%

3:4

0.12

3/25

12%

3:25

0.29

2/7

28.58%

2:7

Fractions & Ratios

What is the strongest solution concentration?
1:10

1:25

1:300

1:450

1:10
What is the strongest concentration?
125mg/mL 250mg/mL 600mg/mL 1g/3mL
600mg/mL
Arrange from smallest to largest
2/3

5/8

3/10 5/8

3/10
32/50

22/25
2/3

32/50
22/25

Find Percent of a Quantity
1. Percentage = Percent X Whole amount
2. Change the percent to a decimal
3. Multiply the decimal by the whole quantity
EXAMPLE: Pt drank 25% of his 4 ounce juice, how many ounces did he drink
Change percent to decimal 25% = 0.25
Multiply 0.25 X 4 = 1 ounce
What is 8% of 450?

Converting within the Metric System

PREFIX

KILO-

Weight

kilogram

Hecto-

Deka-

BASE

DECI-

CENTI-

MILLI-

gram

milligram

Volume

liter

Milliliter

Length

meter

Value to 1,000
Base

100

10

1.0

0.1

centimeter

Millimeter

0.01

0.001

Decimilli-

Centimilli-

MICRO­

microgram

0.0001

0.00001

0.000001

Approximate Equivalents
Memorize!!

1 g = gr xv (15.432 grains) gr i = 60 mg (sometimes 65 mg)
1t = 5 mL
1 T = 15 mL = fl oz
1 fl oz = 30 mL = 6 t
1 L = 32 fl oz = 4 c
1 c = 250 mL (240) = 8 fl oz
1kg = 2.2 lb
1 in = 2.5 cm

Temperature Conversion
• F to C = Subtract 32 and then divide result by 1.8
C = F-32
1.8
• C to F = Multiply by 1.8 and add 32
F = 1.8 X C + 32
• EXAMPLES:
• 99.4 F = _______C
• 99.4 – 32 = 67.4 / 1.8 = 37.4C
• 39.5 C = _______F
• 39.5 X 1.8 = 71.1 + 32 = 103.1

Read the Label






1. Identify the brand or trade name then generic name.
2. Identify the dosage strength of the medication
3. Identify the form of the medication.
4. Total amount in the container
5. The medication should be stored below what temperature? Calculate Dosages

The physician orders Synthroid 50 mcg PO every morning. The above is label pulled out of pyxis.
How much will you administer per dose?
½ tablet

Calculate Dosages

The physician orders hydroxyzine hydrochloride
20 mg IM x 1 dose STAT. You pull the above out of pyxis. How many mL will you give?
0.4 mL

Calculating Dosage Reconstitution
• Step 1: Convert

No conversion is necessary
Order: Solu-Medrol