,TESTBANK FOR Dosage Calculations 5th Edition by
Myrna Davis
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
Our email:
,Name: Class: Date:
Chapter 1 - Fractions and Decimals
1. Which fraction has the highest value?
a. 5/2 b. 5/3
c. 5/9 d. 5/7
ANSWER: a
2. Which fraction has the lowest value?
a. 8/11 b. 9/5
c. 2/9 d. 2/7
ANSWER: c
3. The sodium content of a patient’s breakfast is as follows: 250 mL 2% milk = 0.12 grams; 2 slices of
whole wheat toast = 0.155 grams per slice; margarine = 0.07 grams; and 200 mL apple juice = 0.15
grams. How many grams of sodium did the patient consume?
a. 1.28 grams b. 0.65 grams
c. 495 grams d. 0.495 grams
ANSWER: b
4. Rounding the answer off to two decimal places (hundredths), what is the product of 1.82 × 0.04?
a. 0.73 b. 0.073
c. 0.07 d. 0.7
ANSWER: c
5. Rounding the answer off to two decimal places (hundredths), what is the solution to 1.125 0.75?
a. 1.5 b. 15
c. 1.61 d. 0.84
ANSWER: a
6. Which of the following is an improper fraction?
a. 1/4 b. 6/5
c. 1 2/3 d. 3458
ANSWER: b
7. Arrange the following decimals from largest to smallest: 1.5, 0.25, 1.025
ANSWER: 1.5, 1.025, 0.25
8. Arrange the following decimals from largest to smallest: 0.33, 0.045, 0.7
ANSWER: 0.7, 0.33, 0.045
9. Arrange the following fractions from smallest to largest: , ,
ANSWER:
, ,
10. Arrange the following fractions from smallest to largest: , ,
Copyright Cengage Learning. Powered by Cognero. Page 1
,Name: Class: Date:
Chapter 1 - Fractions and Decimals
ANSWER:
, ,
11.
ANSWER:
12.
ANSWER:
13.
ANSWER:
14.
ANSWER:
Perform the following calculations. Round answers to the second decimal place (hundredths) when
required.
15.
ANSWER: 0.05
16.
ANSWER: 75.58
Copyright Cengage Learning. Powered by Cognero. Page 2
,Name: Class: Date:
Chapter 1 - Fractions and Decimals
17.
ANSWER: $85.17
18.
ANSWER: 700
19.
Complete row 1 in the table above.
ANSWER:
20.
Complete row 2 in the table above. Round this answer to 3 decimal places (thousandths).
ANSWER: 0.125
21.
ANSWER:
Copyright Cengage Learning. Powered by Cognero. Page 3
,Name: Class: Date:
Chapter 2 - Ratios and Percents
1. A medical unit has 24 patients and 4 nurses to provide care. What is the patient to nurse ratio in lowest
terms?
a. 24:4 b. 6:1
c. 12:2 d. 18:3
ANSWER: b
2. Which percentage is the equivalent of a 1:1000 epinephrine solution?
a. 0.1% b. 10%
c. 0.001% d. 0.01%
ANSWER: a
3. Which intravenous solution has the lowest concentration?
a. 5% dextrose in 0.45% saline b. 5% dextrose in water
c. 0.9% normal saline d. 0.45% normal saline
ANSWER: d
4. Which of the following is the strongest solution?
a. 1:10 b. 1:50
c. 1:1 d. 1:25
ANSWER: c
5. What is 0.37% of 352? Express your answer as a decimal rounded to the nearest tenth.
a. 0.1 b. 5.9
c. 9.5 d. 1.3
ANSWER: d
6. What is 45% of 150? Express your answer as a decimal rounded to the nearest tenth.
ANSWER: 67.5
0.45 150 = 67.5
7. Express 24% as a fraction and reduce it to the lowest terms.
ANSWER:
8.
Complete row 1 in the table above.
ANSWER: 9:20
45% =
9.
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,Name: Class: Date:
Chapter 2 - Ratios and Percents
Complete row 2 in the table above.
ANSWER: 30%
10. A class of students consists of 9 men and 51 women. Write a proper fraction to represent the part of
the total class that is women. Reduce the fraction. Change the fraction to a percent.
Reduced fraction: _____
Percent: _____
ANSWER: 17/20; 85%
There are 51 women and 9 men for a total of 60 students in the class.
11. A student received a score of 48 points on a test that was worth 60 points. Write a fraction to represent
the portion of the test the student answered correctly. Reduce the fraction. Change the fraction to a
percent.
Reduced fraction: _____
Percent: _____
ANSWER: 4/5; 80%
12. To pass a chapter test, a student must answer 80% or more of the questions correctly. If a chapter test
has 25 questions, what is the smallest number of questions that the student must answer correctly in order
to pass the test?
ANSWER: 20
At least 80% of 25 questions must be answered correctly.
The student must answer at least 20 questions correctly.
13. To pass a unit test, a student must answer 80% or more of the questions correctly. If a unit test has 75
questions, what is the largest number of questions that the student could answer incorrectly, but still pass
the unit test?
ANSWER: 15
At least 80% of 75 questions must be answered correctly.
Copyright Cengage Learning. Powered by Cognero. Page 2
,Name: Class: Date:
Chapter 2 - Ratios and Percents
At least 60 questions must be answered correctly
The largest number of questions that the student could answer incorrectly, but still pass the
test, is 15 questions.
14. Convert the following. Reduce fractions and ratios to the lowest term. Round decimals and percents to
three decimal places (thousandths).
ANSWER: 1/8; 12.5%; 1:8
0.125 =
0.125 x 100 = 12.5%
15. Convert the following. Reduce fractions and ratios to the lowest term. Round decimals and percents to
three decimal places (thousandths).
Decimal Fraction Percent Ratio
0.0025 0.25%
ANSWER: 1/400; 1:400
0.25% =
16. Mr. Smith is on a 1500 mL/day fluid restriction. He consumed 65% of his total fluid allowance during
breakfast and lunch. How much fluid does Mr. Smith have left to consume in this 24-hour period?
ANSWER: 525 mL
If 65% has already been consumed, then 35% is left to be consumed.
1500 525
17. A newborn baby weighed 3 kg at birth. Three days after the baby was born, she weighed 2.8 kg. What
percentage of body weight has the baby lost? Express the answer as a whole number.
ANSWER: 7%
Difference in body weight is 3 – 2.8 = 0.2 kg lost
Ratio converted to fraction = 0.066
Decimal converted to percent = 0.066 x 100 = 6.6% which rounds to 7%
18. A patient is to be started on 50 mg of a medication daily and then titrated down by 5% of the original
dose each day until the patient is receiving 35 mg daily. How many days will it take to get to the 35 mg
dose? (HINT: include the first 50 mg dose and the first 35 mg dose.)
ANSWER: 7 days
5% of 50 = 0.05 50 = 2.5; so dose will be reduced by 2.5 mg daily
1st day: 50 mg; 2nd day: 50 – 2.5 = 47.5 mg; 3rd day: 47.5 – 2.5 = 45 mg;
4th day: 45 – 2.5 = 42.5 mg; 5th day: 42.5 – 2.5 = 40 mg; 6th day: 40 – 2.5 = 37.5 mg;
7th day: 37.5 – 2.5 = 35 mg
Copyright Cengage Learning. Powered by Cognero. Page 3
,Name: Class: Date:
Chapter 2 - Ratios and Percents
19. Nursing students require 90% on their dosage calculations test in order to be successful in the nursing
program. There are 20 questions on the test each worth one mark. How many questions do the nursing
students need to get correct in order to achieve the 90%?
ANSWER: 18 questions
90% of 20 = 0.9 20 = 18
20. Mrs. Jones is on a 1000 mL fluid restriction per day. So far today, she has consumed 110 mL milk,
120 mL coffee, 125 mL soup, and 115 mL juice. What percentage of her fluid allowance has she already
consumed for the day?
ANSWER: 47%
110 + 120 + 125 + 115 = 470 mL
= 0.47 or 47%
Copyright Cengage Learning. Powered by Cognero. Page 4
, Name: Class: Date:
Chapter 3 - Systems of Measurement
1. Which statement best describes the metric system (International System of Units)?
a. It is based on the decimal system.
b. It is a part of the apothecary system.
c. It was developed from the household system.
d. It has only five base units.
ANSWER: a
2. What is the metric prefix for 0.001?
a. centi b. kilo
c. milli d. micro
ANSWER: c
3. Which of the following is the correct metric notation?
a. 0.5 Gm b. .5 g
c. 0.5 g d. .5 Gm
ANSWER: c
4. What is 7:06 AM in international time?
a. 1706 h b. 0906 h
c. 0706 h d. 1906 h
ANSWER: c
5. What is 2119 h in traditional time?
a. 9:19 AM b. 21:19 PM
c. 19:21 AM d. 9:19 PM
ANSWER: d
SI
Express all of the following answers in metric units (International System Units (SI) notation).
6. Two and one half litres
ANSWER: 2.5 L
7. Three tenths of a gram
ANSWER: 0.3 g
8. 25 milliequivalents
ANSWER: 25 mEq
9. 40 millimoles
ANSWER: 40 mmol
10. 35 units
ANSWER: Thirty-five units
11. 3.5 mg
Copyright Cengage Learning. Powered by Cognero. Page 1
Myrna Davis
Notes
1- The file is chapter after chapter.
2- We have shown you few pages sample.
3- The file contains all Appendix and Excel sheet
if it exists.
4- We have all what you need, we make update
at every time. There are many new editions
waiting you.
5- If you think you purchased the wrong file You
can contact us at every time, we can replace it
with true one.
Our email:
,Name: Class: Date:
Chapter 1 - Fractions and Decimals
1. Which fraction has the highest value?
a. 5/2 b. 5/3
c. 5/9 d. 5/7
ANSWER: a
2. Which fraction has the lowest value?
a. 8/11 b. 9/5
c. 2/9 d. 2/7
ANSWER: c
3. The sodium content of a patient’s breakfast is as follows: 250 mL 2% milk = 0.12 grams; 2 slices of
whole wheat toast = 0.155 grams per slice; margarine = 0.07 grams; and 200 mL apple juice = 0.15
grams. How many grams of sodium did the patient consume?
a. 1.28 grams b. 0.65 grams
c. 495 grams d. 0.495 grams
ANSWER: b
4. Rounding the answer off to two decimal places (hundredths), what is the product of 1.82 × 0.04?
a. 0.73 b. 0.073
c. 0.07 d. 0.7
ANSWER: c
5. Rounding the answer off to two decimal places (hundredths), what is the solution to 1.125 0.75?
a. 1.5 b. 15
c. 1.61 d. 0.84
ANSWER: a
6. Which of the following is an improper fraction?
a. 1/4 b. 6/5
c. 1 2/3 d. 3458
ANSWER: b
7. Arrange the following decimals from largest to smallest: 1.5, 0.25, 1.025
ANSWER: 1.5, 1.025, 0.25
8. Arrange the following decimals from largest to smallest: 0.33, 0.045, 0.7
ANSWER: 0.7, 0.33, 0.045
9. Arrange the following fractions from smallest to largest: , ,
ANSWER:
, ,
10. Arrange the following fractions from smallest to largest: , ,
Copyright Cengage Learning. Powered by Cognero. Page 1
,Name: Class: Date:
Chapter 1 - Fractions and Decimals
ANSWER:
, ,
11.
ANSWER:
12.
ANSWER:
13.
ANSWER:
14.
ANSWER:
Perform the following calculations. Round answers to the second decimal place (hundredths) when
required.
15.
ANSWER: 0.05
16.
ANSWER: 75.58
Copyright Cengage Learning. Powered by Cognero. Page 2
,Name: Class: Date:
Chapter 1 - Fractions and Decimals
17.
ANSWER: $85.17
18.
ANSWER: 700
19.
Complete row 1 in the table above.
ANSWER:
20.
Complete row 2 in the table above. Round this answer to 3 decimal places (thousandths).
ANSWER: 0.125
21.
ANSWER:
Copyright Cengage Learning. Powered by Cognero. Page 3
,Name: Class: Date:
Chapter 2 - Ratios and Percents
1. A medical unit has 24 patients and 4 nurses to provide care. What is the patient to nurse ratio in lowest
terms?
a. 24:4 b. 6:1
c. 12:2 d. 18:3
ANSWER: b
2. Which percentage is the equivalent of a 1:1000 epinephrine solution?
a. 0.1% b. 10%
c. 0.001% d. 0.01%
ANSWER: a
3. Which intravenous solution has the lowest concentration?
a. 5% dextrose in 0.45% saline b. 5% dextrose in water
c. 0.9% normal saline d. 0.45% normal saline
ANSWER: d
4. Which of the following is the strongest solution?
a. 1:10 b. 1:50
c. 1:1 d. 1:25
ANSWER: c
5. What is 0.37% of 352? Express your answer as a decimal rounded to the nearest tenth.
a. 0.1 b. 5.9
c. 9.5 d. 1.3
ANSWER: d
6. What is 45% of 150? Express your answer as a decimal rounded to the nearest tenth.
ANSWER: 67.5
0.45 150 = 67.5
7. Express 24% as a fraction and reduce it to the lowest terms.
ANSWER:
8.
Complete row 1 in the table above.
ANSWER: 9:20
45% =
9.
Copyright Cengage Learning. Powered by Cognero. Page 1
,Name: Class: Date:
Chapter 2 - Ratios and Percents
Complete row 2 in the table above.
ANSWER: 30%
10. A class of students consists of 9 men and 51 women. Write a proper fraction to represent the part of
the total class that is women. Reduce the fraction. Change the fraction to a percent.
Reduced fraction: _____
Percent: _____
ANSWER: 17/20; 85%
There are 51 women and 9 men for a total of 60 students in the class.
11. A student received a score of 48 points on a test that was worth 60 points. Write a fraction to represent
the portion of the test the student answered correctly. Reduce the fraction. Change the fraction to a
percent.
Reduced fraction: _____
Percent: _____
ANSWER: 4/5; 80%
12. To pass a chapter test, a student must answer 80% or more of the questions correctly. If a chapter test
has 25 questions, what is the smallest number of questions that the student must answer correctly in order
to pass the test?
ANSWER: 20
At least 80% of 25 questions must be answered correctly.
The student must answer at least 20 questions correctly.
13. To pass a unit test, a student must answer 80% or more of the questions correctly. If a unit test has 75
questions, what is the largest number of questions that the student could answer incorrectly, but still pass
the unit test?
ANSWER: 15
At least 80% of 75 questions must be answered correctly.
Copyright Cengage Learning. Powered by Cognero. Page 2
,Name: Class: Date:
Chapter 2 - Ratios and Percents
At least 60 questions must be answered correctly
The largest number of questions that the student could answer incorrectly, but still pass the
test, is 15 questions.
14. Convert the following. Reduce fractions and ratios to the lowest term. Round decimals and percents to
three decimal places (thousandths).
ANSWER: 1/8; 12.5%; 1:8
0.125 =
0.125 x 100 = 12.5%
15. Convert the following. Reduce fractions and ratios to the lowest term. Round decimals and percents to
three decimal places (thousandths).
Decimal Fraction Percent Ratio
0.0025 0.25%
ANSWER: 1/400; 1:400
0.25% =
16. Mr. Smith is on a 1500 mL/day fluid restriction. He consumed 65% of his total fluid allowance during
breakfast and lunch. How much fluid does Mr. Smith have left to consume in this 24-hour period?
ANSWER: 525 mL
If 65% has already been consumed, then 35% is left to be consumed.
1500 525
17. A newborn baby weighed 3 kg at birth. Three days after the baby was born, she weighed 2.8 kg. What
percentage of body weight has the baby lost? Express the answer as a whole number.
ANSWER: 7%
Difference in body weight is 3 – 2.8 = 0.2 kg lost
Ratio converted to fraction = 0.066
Decimal converted to percent = 0.066 x 100 = 6.6% which rounds to 7%
18. A patient is to be started on 50 mg of a medication daily and then titrated down by 5% of the original
dose each day until the patient is receiving 35 mg daily. How many days will it take to get to the 35 mg
dose? (HINT: include the first 50 mg dose and the first 35 mg dose.)
ANSWER: 7 days
5% of 50 = 0.05 50 = 2.5; so dose will be reduced by 2.5 mg daily
1st day: 50 mg; 2nd day: 50 – 2.5 = 47.5 mg; 3rd day: 47.5 – 2.5 = 45 mg;
4th day: 45 – 2.5 = 42.5 mg; 5th day: 42.5 – 2.5 = 40 mg; 6th day: 40 – 2.5 = 37.5 mg;
7th day: 37.5 – 2.5 = 35 mg
Copyright Cengage Learning. Powered by Cognero. Page 3
,Name: Class: Date:
Chapter 2 - Ratios and Percents
19. Nursing students require 90% on their dosage calculations test in order to be successful in the nursing
program. There are 20 questions on the test each worth one mark. How many questions do the nursing
students need to get correct in order to achieve the 90%?
ANSWER: 18 questions
90% of 20 = 0.9 20 = 18
20. Mrs. Jones is on a 1000 mL fluid restriction per day. So far today, she has consumed 110 mL milk,
120 mL coffee, 125 mL soup, and 115 mL juice. What percentage of her fluid allowance has she already
consumed for the day?
ANSWER: 47%
110 + 120 + 125 + 115 = 470 mL
= 0.47 or 47%
Copyright Cengage Learning. Powered by Cognero. Page 4
, Name: Class: Date:
Chapter 3 - Systems of Measurement
1. Which statement best describes the metric system (International System of Units)?
a. It is based on the decimal system.
b. It is a part of the apothecary system.
c. It was developed from the household system.
d. It has only five base units.
ANSWER: a
2. What is the metric prefix for 0.001?
a. centi b. kilo
c. milli d. micro
ANSWER: c
3. Which of the following is the correct metric notation?
a. 0.5 Gm b. .5 g
c. 0.5 g d. .5 Gm
ANSWER: c
4. What is 7:06 AM in international time?
a. 1706 h b. 0906 h
c. 0706 h d. 1906 h
ANSWER: c
5. What is 2119 h in traditional time?
a. 9:19 AM b. 21:19 PM
c. 19:21 AM d. 9:19 PM
ANSWER: d
SI
Express all of the following answers in metric units (International System Units (SI) notation).
6. Two and one half litres
ANSWER: 2.5 L
7. Three tenths of a gram
ANSWER: 0.3 g
8. 25 milliequivalents
ANSWER: 25 mEq
9. 40 millimoles
ANSWER: 40 mmol
10. 35 units
ANSWER: Thirty-five units
11. 3.5 mg
Copyright Cengage Learning. Powered by Cognero. Page 1
