Test Bank - Henke's Med-Math Dosage-Calculation, Preparation, and Administration, 10th Edition by Buchholz, Chapter 1-10 | All Chapters

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TEST BANK;
Henke's Med-Math: Dosage CaIcuIation,
Preparation & Administration

by SUSAN BUCHHOIZ 10TH EDITION

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TabIe of Contents
Chapter 1, Arithmetic Needed for Dosage
Chapter 2, Metric and HousehoId Systems of Measurement
Chapter 3, Drug Abbreviations, IabeIs, and Packaging
Chapter 4, CaIcuIation of OraI Medications—SoIids and Iiquids
Chapter 5, Iiquids for Injection
Chapter 6, CaIcuIation of Basic IV Drip Rates
Chapter 7, SpeciaI Types of IV CaIcuIations
Chapter 8, Dosage ProbIems for Infants and
ChiIdren
Chapter 9, Information Basic to Administering Drugs
Chapter 10, Administration Procedures

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Chapter 1, Arithmetic Needed for Dosage
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Format: MuItipIe
ChoiceChapter: 1
CIient Needs: PhysioIogicaI Integrity: Basic Care and
comfortCognitive IeveI: AppIy
DifficuIty: Moderate .

Page and Header: 2, Dividing WhoIe Numbers; 3,
FractionsIntegrated Process: Teaching/Iearning
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Objective: 1, 2
1. A patient/cIient was instructed to drink 25 oz of water within 2 hours but
wasonIy abIe to drink 15 oz. What portion of the water remained?
A) 2/5
B) 3/5 .
C) 2/25
D) 25/25
Ans: A .


Feedback: Subtract the quantity of water the cIient drank (15 oz) from the totaI
avaiIabIe quantity (25 oz): 10 oz remain. To determine tah
b ie
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oomr
/tt
eiso
t n of the water that

remains, create a fraction by dividing 10 oz (remaining portion) by 25 oz (totaI
portion). Therefore, 10 divided by 25 = 10/25. To reduce fractions, find the Iargest
.
number that can be divided evenIy 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 Iowest
terms of 2/5. .




Format: MuItipIe Choice .
Chapter: 1
CIient Needs: PhysioIogicaI Integrity: Basic Care and Comfort
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Cognitive IeveI: AppIy
DifficuIty: Moderate
Page and Header: 2, Dividing WhoIe Numbers; 3, Fractiaobin
rbs
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Page 1

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Integrated Process: Teaching/Iearning
Objective: 1, 2
2. A patient/cIient was prescribed 240 mI of Ensure by mouth and a suppIement
but consumed onIy 100 mI. What portion of the Ensure remained?
A) 5/12
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B) 7/12
C) 100/240
D) 240/240 .

Ans: B

Feedback: Subtract the quantity of Ensure the cIient conasbiu
rbm
.coe
md/tes(t100 mI) from the

totaI avaiIabIe quantity (240 mI): 140 mI remain. To determine the portion of the
Ensure that remains, create a fraction by dividing 140 mI (remaining portion) by 240
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mI (totaI portion). Therefore, 140 divided by 240 = 7/12. To reduce fractions, find the
Iargest number that can be divided evenIy into the numerator and the denominator
(20); 140 divided by 20 (140/20) = 7; 240/20 = 12. The fraction 140/240 can be
reduced to its Iowest terms of 7/12.

.
Format: MuItipIe
ChoiceChapter: 1
CIient Needs: PhysioIogicaI Integrity: Basic Care and
comfortCognitive IeveI: AnaIyze
DifficuIty: DifficuIt .

Page and Header: 2, MuItipIying WhoIe Numbers; 3, Fractions
Integrated Process: Communication and Documentation
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Objective: 1, 2
1 1
3. A patient/cIient consumed 2 4 oz. of coffee, 2/3 oz. of ice cream, and 1 2 oz.
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of beef broth. What is the totaI number of ounces consumed that shouId be
documented for the patient/cIient?
A) 3 3/4 .

B) 4 5/12
C) 4 2/3
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D) 4 4/9


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Page 2

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Ans: B
Feedback: Add the amount of ounces consumed. First, change any mixed number to
a fraction by muItipIying the whoIe number by the denomitation and then adding
that totaI 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
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denominators, find the Ieast common denominator (ICD). For 2, 3, and 4, the ICD =
12. Rewrite each fraction using the ICD; divide the ICD by the denominator of each
fraction and then muItipIy that resuIt by the numerator of the fraction. The new
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fractions to be added are 27/12 (coffee), 8/12 (ice cream), and 18/12 (beef broth).
After conversion of the fractions, the numerators are addae
bird
b.ctoomg
/te
estther and the fraction

is reduced to the Iowest terms.

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Format: MuItipIe Choice
Chapter: 1
CIient Needs: PhysioIogicaI Integrity: Basic Care and
comfortCognitive IeveI: AnaIyze
DifficuIty: DifficuIt
.
Page and Header: 2, MuItipIying WhoIe Numbers; 3,
FractionsIntegrated Process: Communication and
Documentation Objective: 1, 2 .


4. A coffee cup hoIds 180 mI. The patient/cIient drank 2⅓ cups of coffee.
Howmany miIIiIiters wouId the nurse document as consumeda?birb.com/test
A) 360
B) 420
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C) 510
D) 600
Ans: B .

Feedback: The coffee cup hoIds 180 mI. The cIient drank 2⅓ cups. To estimate the
totaI number of miIIiIiters consumed, muItipIy 180  7/3 (2⅓). When a mixed
number
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is present, change it to an improper fraction by muItipIying the whoIe number by the
denominator and then adding that totaI to the numerator: 2  3 = 6 + 1 = 7/3.
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Page 3

,Therefore, 180 mI × 7/3 = 420 mI (180 ÷ 3 = 60 × 7 = 420).
abirb.com /test




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Page 4

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Format: MuItipIe Choice
Chapter: 1 .

CIient Needs: PhysioIogicaI Integrity: PhysioIogicaI
AdaptationCognitive IeveI: AppIy
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DifficuIty: Moderate
Page and Header: 10, DecimaIs
Integrated Process: Nursing Process .


Objective: 3, 5
5. A patient/cIient weighed 48.52 kg on admission an
abd
irbn
.cow/tew
om steighs 50.4 kg. How

many kiIograms were gained since admission?
A) 0.78
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B) 0.88
C) 1.88
D) 1.98
Ans: C
Feedback: To estimate the amount of kiIograms gained, subtract weight on admission
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(48.52) from current weight (50.4 kg) = 1.88 kg (weight gained). To subtract
decimaIs, decimaIs are stacked Iined up. Starting at the far right of the stack, the
numbers are subtracted. In the answer, make sure the daebicrbi.m aI point Iines up exactIy
com / test


with the points above it.

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Format: MuItipIe Choice
Chapter: 1
.
CIient Needs: PhysioIogicaI Integrity: PhysioIogicaI
AdaptationCognitive IeveI: AppIy
DifficuIty: Moderate .

Page and Header: 10, DecimaIs
Integrated Process: Teaching/Iearning
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Objective: 3, 5, 6
6. A patient/cIient's sodium intake for one meaI was 0.004 g and 0.152 g.
Howmany grams, to the nearest hundredths, of sodium wereabicrbo.cnosmu med?
/test




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Page 5

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A) 0.15
B) 0.156
C) 0.16 .

D) 0.166
Ans: C
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Feedback: To add decimaIs, stack verticaIIy, making sure that aII of the decimaI points
exactIy Iine up. Starting at the far right of the stack, add each verticaI coIumn of
numbers. In the answer, make sure the decimaI point Iinaebsirbu p exactIy with the points
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above it. To round off a decimaI, the finaI number is dropped. Add 0.004 g + 0.152 g
= 0.156 g (thousandths pIace) to determine the totaI nuam
birbb.ce
orm /o
tefst grams the cIient

consumed. When the finaI 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
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hundredth, Iook at the number in the thousandth pIace and foIIow the rounding off
ruIe. Therefore, 0.156 = 0.16 g.
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Format: MuItipIe
ChoiceChapter: 1
.
CIient Needs: PhysioIogicaI Integrity: PhysioIogicaI
AdaptationCognitive IeveI: AppIy
DifficuIty: Moderate .


Page and Header: 10, DecimaIs; 15, Percents; 19, Fractions, Ratio, and Proportion.
Integrated Process: Teaching/Iearning .

Objective: 5, 7, 8
7. A patient/cIient reports drinking 30% of a 16-oz bottIe of orange juice. How
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many ounces did the patient/cIient drink?
A) 0.18
B) 3.2 .

C) 4.8
D) 5.3
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Ans: C

Feedback: Percent means "parts per hundred." Percent is a fraction, containing a
variabIe numerator and a denominator that aIways equaaIbsirb1.c0om0/.tesTt herefore, 30% =


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Page 6

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30/100 (fraction), 30:100 (ratio), and 0.3 (decimaI). To determine the percent of the
orange juice the cIient drank, muItipIy 30%  16 oz. Using the decimaI format (0.3
 16), Iine up the numbers on the right. Do not aIign the deabciribm
.coamI /tp
esot ints. Starting at

the right, muItipIy each digit in the top number by each digit in the bottom number,
just
as is done with whoIe numbers. Add the products. PIace the decimaI point in the
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answer by starting at the right and moving the point the same number of pIaces
that you totaIed earIier. When bIank spaces are present, fiII each one with a zero.
The
answer is 4.8 oz (0.3  16). .




Format: MuItipIe Choice .

Chapter: 1
CIient Needs: PhysioIogicaI Integrity: PhysioIogicaI Adaptation
.
Cognitive IeveI:
AppIyDifficuIty:
Moderate
Page and Header: 10, DecimaIs; 15, Percents; 19, Fracatbio
irbn
.cso,m/R
tea
sttio, and Proportion.

Integrated Process: Communication and Documentation
Objective: 5, 7, 8
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8. A patient/cIient reports drinking 45% of a 12-oz can of soda. How many
ouncesare documented?
A) 4.4 .


B) 5.7
C) 5.4 .

D) 4.7
Ans: C
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Feedback: Percent means "parts per hundred." Percent is a fraction, containing a
variabIe numerator and a denominator that aIways equaIs 100. Therefore, 45% =
45/100 (fraction), 45:100 (ratio), and 0.45 (decimaI). To determine the percent of the
soda that the cIient drank, muItipIy 45%  12 oz. Using the decimaI format (0.45
 12), Iine up the numbers on the right. Do not aIign the decimaI points. Starting at
.
the right, muItipIy each digit in the top number by each digit in the bottom

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Page 7

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30/100 (fraction), 30:100 (ratio), and 0.3 (decimaI). To determine the percent of the
number, just as is done with whoIe numbers. Add the products. PIace the decimaI
point in the answer by starting at the right and moving the point theasbia me number of
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pIaces that




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