NURSING
5TH EDITION
AUTHOR(S)SUSAN SCOTT RICCI;
TERRI KYLE; SUSAN CARMAN
TEST BANK
1. Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question: A provider orders 2/5 tablet of a medication. Each
tablet contains 3/4 mg of the drug. How much medication will
the nurse administer?
,Options:
A. 0.18 mg
B. 0.30 mg
C. 0.375 mg
D. 1.50 mg
Correct Answer: B. 0.30 mg
Rationale:
Correct answer: Multiply the fraction of the tablet by the
strength per tablet: 25×34=620=310=0.30\frac{2}{5} \times
\frac{3}{4} = \frac{6}{20} = \frac{3}{10} = 0.3052×43=206=103
=0.30 mg. The tablet units cancel, leaving milligrams. This is the
dose to administer.
A: 0.18 mg reflects an incorrect multiplication or conversion
error.
C: 0.375 mg is the product of the two numerators and
denominators interpreted incorrectly.
D: 1.50 mg is too high and suggests multiplying without proper
fraction reduction.
Teaching Point: Multiply fractions carefully; cancel units before
selecting the final dose.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
2. Dividing Fractions
Reference: Ch. 1 — Fractions — Dividing Fractions
,Question: A provider orders 3/4 mg of a medication. The
pharmacy supplies 1/8 mg tablets. How many tablets should
the nurse give?
Options:
A. 4 tablets
B. 6 tablets
C. 8 tablets
D. 12 tablets
Correct Answer: B. 6 tablets
Rationale:
Correct answer: Divide the ordered dose by the tablet strength:
34÷18=34×8=6\frac{3}{4} \div \frac{1}{8} = \frac{3}{4} \times 8 =
643÷81=43×8=6 tablets. The mg units cancel, leaving tablets.
A: 4 tablets comes from an incomplete or incorrect
simplification.
C: 8 tablets is too high and may result from using the
denominator incorrectly.
D: 12 tablets reflects a multiplication error rather than division.
Teaching Point: To divide fractions, multiply by the reciprocal.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
3. Converting Fractions to Decimals
, Reference: Ch. 1 — Fractions — Converting Fractions to
Decimals
Question: A provider orders 7/10 mg of a medication. The
nurse must document the dose in decimal form. What should
the nurse record?
Options:
A. 0.07 mg
B. 0.7 mg
C. 7.0 mg
D. 0.17 mg
Correct Answer: B. 0.7 mg
Rationale:
Correct answer: 710=0.7\frac{7}{10} = 0.7107=0.7. Because the
denominator is 10, the numerator becomes tenths.
A: 0.07 mg places the 7 in the hundredths position, which is too
small.
C: 7.0 mg is far too large and ignores the denominator.
D: 0.17 mg is not equivalent to 7/10.
Teaching Point: Fractions with denominator 10 convert directly
to tenths.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
4. Roman Numerals