Henke's Med-Math:
Dosage Calculation, Preparation & Administration
10th Edition
Susan Buchholz
COMPLETE TEST BANK | 300 QUESTIONS WITH ANSWERS & RATIONALES
288 MULTIPLE CHOICE | 12 MULTIPLE SELECT
ALL 10 CHAPTERS
, TABLE OF CONTENTS
Henke's Med-Math: Dosage Calculation, Preparation & Administration - 10th Edition
1. Arithmetic Needed for Dosage
2. Metric and Household Systems of Measurement
3. Drug Abbreviations, Labels, and Packaging
4. Calculation of Oral Medications - Solids and Liquids
5. Liquids for Injection
6. Calculation of Basic IV Drip Rates
7. Special Types of IV Calculations
8. Dosage Problems for Infants and Children
9. Information Basic to Administering Drugs
10. Administration Procedures
Included: Complete Chapters 1-10 | 288 Multiple Choice | 12 Multiple Select | Answers & Detailed
Rationales
,Test Generator Questions, Chapter 1, Arithmetic
Needed for Dosage
1. A patient/client was instructed to drink 750 mL of water within 2 hours but was only able to drink 450
mL. What portion of the water remained?
A) 2/5
B) 3/5
C) 2/25
D) 25/25
Answer: A
Rationale: Subtract the quantity of water the client drank (450 mL) from the total available quantity (750 mL): 300 mL
remains. To determine the portion of the water that remains, create a fraction by dividing 300 mL (remaining portion) by
750 mL (total portion): 300 divided by 750 = 300/750. To reduce fractions, find the largest number that can be divided
evenly into the numerator and the denominator: 50. 300 divided by 50 is 6; 750 divided by 50 is 15. The fraction 6/15 can
then be reduced to its lowest terms, 2/5.
Format: Multiple Choice
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Page and Header: 2, Dividing Whole Numbers; 3, Fractions
Integrated Process: Teaching/Learning
Objective: 1
2. A patient/client was prescribed 240 mL of a nutritional shake by mouth as a supplement but consumed
only 100 mL. What portion of the nutritional shake remained?
A) 5/12
B) 7/12
C) 100/240
D) 240/240
Answer: B
Rationale: Subtract the quantity of nutritional shake the client consumed (100 mL) from the total available quantity (240
mL): 140 mL remains. To determine the portion that remains, create a fraction by dividing 140 mL (remaining portion) by
240 mL (total portion): 140/240. To reduce fractions, find the largest number that can be divided evenly 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 lowest terms of 7/12.
Page 1
, Format: Multiple Choice
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Page and Header: 2, Dividing Whole Numbers
Integrated Process: Nursing Process
Objective: 1
3. A patient/client tells the nurse, “I ate 60% of the food on my dinner tray.” The nurse determines that the
patient/client consumed what fraction of the food on the tray?
A) 1/4
B) 1/3
C) 3/5
D) 5/8
Answer: C
Rationale: Percent refers to “parts per hundred” and reflects a fraction with a variable number in the numerator and 100
always as the denominator. To determine the fraction, place the percent number in the numerator and 100 in the
denominator and then reduce. In this case, the fraction would be 60/100, which would be reduced to 6/10, and then
reduced again to 3/5.
Format: Multiple Choice
Chapter: 1
Client Needs: Physiological Integrity: Basic Care and Comfort
Cognitive Level: Apply
Page and Header: 15, Percents
Integrated Process: Communication and Documentation
Objective: 6
4. A coffee cup holds 180 mL. The patient/client drank 2⅓ cups of coffee. How many milliliters would the
nurse document as consumed?
A) 360
B) 420
C) 510
D) 600
Answer: B
Rationale: The coffee cup holds 180 mL. The client drank 2⅓ 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 the numerator. In the example of 2⅓: 2 3 = 6 + 1 = 7/3. Therefore, 180
mL × 7/3 = 420 mL. (180 × 7 = 1260 ÷ 3 = 420).
Format: Multiple Choice
Chapter: 1
Page 2