Conversions for
Other Clinical Applications:
Time and Temperature
Textbook Assignment:
Pickar, G. (2007). Dosage calculations: A ratio-proportion approach. (2nd ed.)
Chapter 5
Revised KBurger 0808
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Time
• Time is an essential part of the drug order.
• Traditional versus International (military) time.
• What are some issues related to using the
traditional time format?
• What are the benefits of using International time
format?
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24-Hour Clock
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Traditional and 24-Hour Clock
AM
Int’l. Time
PM
Int’l Time
12:00 midnight
2400
12:00 noon
1200
1:00
0100
1:00
1300
2:00
0200
2:00
1400
3:00
0300
3:00
1500
4:00
0400
4:00
1600
5:00
0500
5:00
1700
6:00
0600
6:00
1800
7:00
0700
7:00
1900
8:00
0800
8:00
2000
9:00
0900
9:00
2100
10:00
1000
10:00
2200
11:00
1100
11:00
2300
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What Time Is It?
Convert to International Time
•
•
•
•
•
3:15 p.m.
4:45 a.m.
5:30 p.m.
10:10 p.m.
12:35 a.m.
1515
0445
1730
2210
0035
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What Is Wrong?
• Give two Tylenol at 9:00
??am or pm??
• Blood pressure to be taken at 2510
Beyond 24 hrs
• Insulin given at 23:10 p.m.
pm not necessary
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Temperature
Celsius and Fahrenheit Scales
• To convert between Fahrenheit and
Celsius temperatures use the formula:
F  1.8C  32
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Celsius and Fahrenheit Scales
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Celsius and Fahrenheit Scales
• Using the
FORMULA to:
Convert 35˚ C to
Fahrenheit
F  1.8C  32
F = [1.8 x 35]+ 32
F = 63 + 32
F = 95
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Celsius and Fahrenheit Scales
F  1.8C  32
• Use the
FORMULA to:
Convert 102 F to Celsius
102 = [1.8 x C]+ 32
102-32 = [1.8 x C] +32 – 32
70 = 1.8C
70 = C
1.8
38.9 = C
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Calculate the Temperatures
•
•
•
•
99˚ Fahrenheit
75˚ Fahrenheit
18˚ Celsius
65˚ Celsius
37.2 Celsius
23.9 Celsius
64.4 Fahrenheit
149 Fahrenheit
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