TEST BANK
Henke's Med-Math: Dosage Calculation, Preparation, & Administration
by Susan Buchholz
9th Edition
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R
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D
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C
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,Chapter 1: Arithmetic Needed for Dosage
MULTIPLE CHOICE
1. A patient/client was instructed to drink 25 oz of water within 2 hours but was only able to drink 15 oz.
What portion of the water remained?
a. 2/5
b. 3/5
c. 2/25
d. 25/25
N
ANS: A
Feedback: Subtract the quantity of water the client drank (15 oz) from the total available quantity (25
oz): 10 oz remain. To determine the portion of the water that remains, create a fraction by dividing 10
oz (remaining portion) by 25 oz (total portion). Therefore, 10 divided by 25 = 10/25. To reduce
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fractions, find the largest number that can be divided evenly into the numerator and the denominator
(5). Ten divided by 5 (10/5) = 2; 25/5 = 5. The fraction 10/25 can be reduced to its lowest terms of 2/5.
Format: Multiple Choice
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Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Difficulty: Moderate
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Page and Header: 2, Dividing Whole Numbers; 3, Fractions
Integrated Process: Teaching/Learning
Objective: 1, 2
2. A patient/client was prescribed 240 W
mWLWo.
f ETnB
suSreMb.yWmSouth as a supplement but consumed only 100
mL. What portion of the Ensure remained?
a. 5/12
b. 7/12
D
c. 100/240
d. 240/240
ANS: B
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Feedback: Subtract the quantity of Ensure the client consumed (100 mL) from the total available
quantity (240 mL): 140 mL remain. To determine the portion of the Ensure that remains, create a
fraction by dividing 140 mL (remaining portion) by 240 mL (total portion). Therefore, 140 divided by
240 = 7/12. To reduce fractions, find the largest number that can be divided evenly into the numerator
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and the denominator (20); 140 divided by 20 (140/20) = 7; 240/20 = 12. The fraction 140/240 can be
reduced to its lowest terms of 7/12.
Format: Multiple Choice
S
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Difficulty: Moderate
Page and Header: 2, Dividing Whole Numbers; 3, Fractions
Integrated Process: Teaching/Learning
Objective: 1, 2
,3. A patient/client consumed oz. of coffee, 2/3 oz. of ice cream, and oz. of beef broth. What is
the total number of ounces consumed that should be documented for the patient/client?
a. 3 3/4
b. 4 5/12
c. 4 2/3
d. 4 4/9
ANS: B
Feedback: Add the amount of ounces consumed. First, change any mixed number to a fraction by
multiplying the whole number by the denominator and then adding that total to the numerator. For the
coffee, 4 2 = 8 + 1 = 9/4; for the beef broth, 2 1
= 2 + 1 = 3/2. Then add: 9/4 + 2/3 (ice cream) + 3/2. When fractions have different denominators, find
the least common denominator (LCD). For 2, 3, and 4, the LCD =
12. Rewrite each fraction using the LCD; divide the LCD by the denominator of each fraction and then
multiply that result by the numerator of the fraction. The new fractions to be added are 27/12 (coffee),
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8/12 (ice cream), and 18/12 (beef broth). After conversion of the fractions, the numerators are added
together and the fraction is reduced to the lowest terms.
Format: Multiple Choice
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Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Analyze
Difficulty: Difficult
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Page and Header: 2, Multiplying Whole Numbers; 3, Fractions
Integrated Process: Communication and Documentation
Objective: 1, 2
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4. A coffee cup holds 180 mL. The patient/client drank 2? cups of coffee. How many milliliters would
the nurse document as consumed? WWW.TBSM.WS
a. 360
b. 420
c. 510
d. 600
D
ANS: B
Feedback: The coffee cup holds 180 mL. The client drank 2? cups. To estimate the total number of
milliliters consumed, multiply 180 7/3 ( ). When a mixed number is present, change it to an
improper fraction by multiplying the whole number by the denominator and then adding that total to
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the numerator: 2 3 = 6 + 1 = 7/3. Therefore, 180 mL × 7/3 = 420 mL (180 ÷ 3 = 60 × 7 = 420).
Format: Multiple Choice
Chapter: 1
C
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Analyze
Difficulty: Difficult
Page and Header: 2, Multiplying Whole Numbers; 3, Fractions
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Integrated Process: Communication and Documentation
Objective: 1, 2
5. A patient/client weighed 48.52 kg on admission and now weighs 50.4 kg. How many kilograms were
gained since admission?
a. 0.78
b. 0.88
, c. 1.88
d. 1.98
ANS: C
Feedback: To estimate the amount of kilograms gained, subtract weight on admission (48.52) from
current weight (50.4 kg) = 1.88 kg (weight gained). To subtract decimals, decimals are stacked lined
up. Starting at the far right of the stack, the numbers are subtracted. In the answer, make sure the
decimal point lines up exactly with the points above it.
Format: Multiple Choice
Chapter: 1
Client Needs: Physiological Integrity: Physiological Adaptation
Cognitive Level: Apply
Difficulty: Moderate
Page and Header: 10, Decimals
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Integrated Process: Nursing Process
Objective: 3, 5
6. A patient/client's sodium intake for one meal was 0.004 g and 0.152 g. How many grams, to the
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nearest hundredths, of sodium were consumed?
a. 0.15
b. 0.156
c. 0.16
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d. 0.166
ANS: C
Feedback: To add decimals, stack vertically, making sure that all of the decimal points exactly line up.
Starting at the far right of the stack, add each vertical column of numbers. In the answer, make sure the
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decimal point lines up exactly with the points above it. To round off a decimal, the final number is
dropped. Add 0.004 g + 0.152 g = 0W. 1W
5 6Wg.(Tt hBo uSs M
a n.d tWh sSp l a c e ) to determine the total number of grams
the client consumed. When the final number (6) is 5 or greater, drop that number and increase the
adjacent number (5) by 1. When you want a number rounded off to the nearest hundredth, look at the
number in the thousandth place and follow the rounding off rule. Therefore, 0.156 = 0.16 g.
Format: Multiple Choice
D
Chapter: 1
Client Needs: Physiological Integrity: Physiological Adaptation
Cognitive Level: Apply
Difficulty: Moderate
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Page and Header: 10, Decimals
Integrated Process: Teaching/Learning
Objective: 3, 5, 6
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7. A patient/client reports drinking 30% of a 16-oz bottle of orange juice. How many ounces did the
patient/client drink?
a. 0.18
b. 3.2
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c. 4.8
d. 5.3
ANS: C
Henke's Med-Math: Dosage Calculation, Preparation, & Administration
by Susan Buchholz
9th Edition
N
U
R
SE
D
O
C
S
,Chapter 1: Arithmetic Needed for Dosage
MULTIPLE CHOICE
1. A patient/client was instructed to drink 25 oz of water within 2 hours but was only able to drink 15 oz.
What portion of the water remained?
a. 2/5
b. 3/5
c. 2/25
d. 25/25
N
ANS: A
Feedback: Subtract the quantity of water the client drank (15 oz) from the total available quantity (25
oz): 10 oz remain. To determine the portion of the water that remains, create a fraction by dividing 10
oz (remaining portion) by 25 oz (total portion). Therefore, 10 divided by 25 = 10/25. To reduce
U
fractions, find the largest number that can be divided evenly into the numerator and the denominator
(5). Ten divided by 5 (10/5) = 2; 25/5 = 5. The fraction 10/25 can be reduced to its lowest terms of 2/5.
Format: Multiple Choice
R
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Difficulty: Moderate
SE
Page and Header: 2, Dividing Whole Numbers; 3, Fractions
Integrated Process: Teaching/Learning
Objective: 1, 2
2. A patient/client was prescribed 240 W
mWLWo.
f ETnB
suSreMb.yWmSouth as a supplement but consumed only 100
mL. What portion of the Ensure remained?
a. 5/12
b. 7/12
D
c. 100/240
d. 240/240
ANS: B
O
Feedback: Subtract the quantity of Ensure the client consumed (100 mL) from the total available
quantity (240 mL): 140 mL remain. To determine the portion of the Ensure that remains, create a
fraction by dividing 140 mL (remaining portion) by 240 mL (total portion). Therefore, 140 divided by
240 = 7/12. To reduce fractions, find the largest number that can be divided evenly into the numerator
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and the denominator (20); 140 divided by 20 (140/20) = 7; 240/20 = 12. The fraction 140/240 can be
reduced to its lowest terms of 7/12.
Format: Multiple Choice
S
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Difficulty: Moderate
Page and Header: 2, Dividing Whole Numbers; 3, Fractions
Integrated Process: Teaching/Learning
Objective: 1, 2
,3. A patient/client consumed oz. of coffee, 2/3 oz. of ice cream, and oz. of beef broth. What is
the total number of ounces consumed that should be documented for the patient/client?
a. 3 3/4
b. 4 5/12
c. 4 2/3
d. 4 4/9
ANS: B
Feedback: Add the amount of ounces consumed. First, change any mixed number to a fraction by
multiplying the whole number by the denominator and then adding that total to the numerator. For the
coffee, 4 2 = 8 + 1 = 9/4; for the beef broth, 2 1
= 2 + 1 = 3/2. Then add: 9/4 + 2/3 (ice cream) + 3/2. When fractions have different denominators, find
the least common denominator (LCD). For 2, 3, and 4, the LCD =
12. Rewrite each fraction using the LCD; divide the LCD by the denominator of each fraction and then
multiply that result by the numerator of the fraction. The new fractions to be added are 27/12 (coffee),
N
8/12 (ice cream), and 18/12 (beef broth). After conversion of the fractions, the numerators are added
together and the fraction is reduced to the lowest terms.
Format: Multiple Choice
U
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Analyze
Difficulty: Difficult
R
Page and Header: 2, Multiplying Whole Numbers; 3, Fractions
Integrated Process: Communication and Documentation
Objective: 1, 2
SE
4. A coffee cup holds 180 mL. The patient/client drank 2? cups of coffee. How many milliliters would
the nurse document as consumed? WWW.TBSM.WS
a. 360
b. 420
c. 510
d. 600
D
ANS: B
Feedback: The coffee cup holds 180 mL. The client drank 2? cups. To estimate the total number of
milliliters consumed, multiply 180 7/3 ( ). When a mixed number is present, change it to an
improper fraction by multiplying the whole number by the denominator and then adding that total to
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the numerator: 2 3 = 6 + 1 = 7/3. Therefore, 180 mL × 7/3 = 420 mL (180 ÷ 3 = 60 × 7 = 420).
Format: Multiple Choice
Chapter: 1
C
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Analyze
Difficulty: Difficult
Page and Header: 2, Multiplying Whole Numbers; 3, Fractions
S
Integrated Process: Communication and Documentation
Objective: 1, 2
5. A patient/client weighed 48.52 kg on admission and now weighs 50.4 kg. How many kilograms were
gained since admission?
a. 0.78
b. 0.88
, c. 1.88
d. 1.98
ANS: C
Feedback: To estimate the amount of kilograms gained, subtract weight on admission (48.52) from
current weight (50.4 kg) = 1.88 kg (weight gained). To subtract decimals, decimals are stacked lined
up. Starting at the far right of the stack, the numbers are subtracted. In the answer, make sure the
decimal point lines up exactly with the points above it.
Format: Multiple Choice
Chapter: 1
Client Needs: Physiological Integrity: Physiological Adaptation
Cognitive Level: Apply
Difficulty: Moderate
Page and Header: 10, Decimals
N
Integrated Process: Nursing Process
Objective: 3, 5
6. A patient/client's sodium intake for one meal was 0.004 g and 0.152 g. How many grams, to the
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nearest hundredths, of sodium were consumed?
a. 0.15
b. 0.156
c. 0.16
R
d. 0.166
ANS: C
Feedback: To add decimals, stack vertically, making sure that all of the decimal points exactly line up.
Starting at the far right of the stack, add each vertical column of numbers. In the answer, make sure the
SE
decimal point lines up exactly with the points above it. To round off a decimal, the final number is
dropped. Add 0.004 g + 0.152 g = 0W. 1W
5 6Wg.(Tt hBo uSs M
a n.d tWh sSp l a c e ) to determine the total number of grams
the client consumed. When the final number (6) is 5 or greater, drop that number and increase the
adjacent number (5) by 1. When you want a number rounded off to the nearest hundredth, look at the
number in the thousandth place and follow the rounding off rule. Therefore, 0.156 = 0.16 g.
Format: Multiple Choice
D
Chapter: 1
Client Needs: Physiological Integrity: Physiological Adaptation
Cognitive Level: Apply
Difficulty: Moderate
O
Page and Header: 10, Decimals
Integrated Process: Teaching/Learning
Objective: 3, 5, 6
C
7. A patient/client reports drinking 30% of a 16-oz bottle of orange juice. How many ounces did the
patient/client drink?
a. 0.18
b. 3.2
S
c. 4.8
d. 5.3
ANS: C
