Dosage Calculations Made Easy
Solving Problems Using
Dimensional Analysis
8th Edition
• Author(s)Gloria Pearl Craig
TEST BANK
1) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question: A nurse is reviewing an older medication record that
lists a dose as IV mg. To document the dose correctly in Arabic
numerals, what number should the nurse write?
A. 6
B. 4
,C. 9
D. 14
Correct Answer: B. 4
Rationale:
Correct answer: Roman numeral IV = 4. The symbol placed
before a larger symbol is subtracted, so I before V means 5 − 1.
Correct transcription is essential to prevent documentation
errors.
A: 6 would be VI, which reverses the order and changes the
value.
C: 9 is IX, not IV.
D: 14 is XIV, not IV.
Teaching Point: Roman numerals change meaning when symbol
order changes.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
2) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question: A provider writes an order as 18 mg. A student nurse
is asked to record it using Roman numerals for a charting
exercise. Which response is correct?
A. XVII
B. XII
,C. XVIII
D. XXVIII
Correct Answer: C. XVIII
Rationale:
Correct answer: 18 = XVIII. Ten is X and eight is VIII, so together
they form XVIII.
A: XVII equals 17, which is 1 less than the requested value.
B: XII equals 12, not 18.
D: XXVIII equals 28, which is too high.
Teaching Point: Break Roman numerals into tens and ones.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
3) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question: A medication history form shows XLII mg. What is the
Arabic numeral equivalent?
A. 42
B. 62
C. 32
D. 52
Correct Answer: A. 42
, Rationale:
Correct answer: XLII = 42 because XL = 40 and II = 2. Adding the
parts gives the total value.
B: 62 would be LXII, not XLII.
C: 32 would be XXXII, not XLII.
D: 52 would be LII, not XLII.
Teaching Point: A smaller numeral before a larger one means
subtraction.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
4) Multiplying Fractions
Reference: Ch. 1 — Arithmetic Review — Fractions —
Multiplying Fractions
Question: A patient is prescribed 2/3 of the usual dose. The
usual dose is 3/4 tablet. How much medication will the patient
receive?
A. 1/4 tablet
B. 2/3 tablet
C. 5/12 tablet
D. 1/2 tablet
Correct Answer: D. 1/2 tablet
Rationale:
Correct answer: Multiply the numerators and denominators:
2/3 × 3/4 = 6/12 = 1/2. The 3 cancels with the 3, leaving 2/4,
Solving Problems Using
Dimensional Analysis
8th Edition
• Author(s)Gloria Pearl Craig
TEST BANK
1) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question: A nurse is reviewing an older medication record that
lists a dose as IV mg. To document the dose correctly in Arabic
numerals, what number should the nurse write?
A. 6
B. 4
,C. 9
D. 14
Correct Answer: B. 4
Rationale:
Correct answer: Roman numeral IV = 4. The symbol placed
before a larger symbol is subtracted, so I before V means 5 − 1.
Correct transcription is essential to prevent documentation
errors.
A: 6 would be VI, which reverses the order and changes the
value.
C: 9 is IX, not IV.
D: 14 is XIV, not IV.
Teaching Point: Roman numerals change meaning when symbol
order changes.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
2) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question: A provider writes an order as 18 mg. A student nurse
is asked to record it using Roman numerals for a charting
exercise. Which response is correct?
A. XVII
B. XII
,C. XVIII
D. XXVIII
Correct Answer: C. XVIII
Rationale:
Correct answer: 18 = XVIII. Ten is X and eight is VIII, so together
they form XVIII.
A: XVII equals 17, which is 1 less than the requested value.
B: XII equals 12, not 18.
D: XXVIII equals 28, which is too high.
Teaching Point: Break Roman numerals into tens and ones.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
3) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question: A medication history form shows XLII mg. What is the
Arabic numeral equivalent?
A. 42
B. 62
C. 32
D. 52
Correct Answer: A. 42
, Rationale:
Correct answer: XLII = 42 because XL = 40 and II = 2. Adding the
parts gives the total value.
B: 62 would be LXII, not XLII.
C: 32 would be XXXII, not XLII.
D: 52 would be LII, not XLII.
Teaching Point: A smaller numeral before a larger one means
subtraction.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
4) Multiplying Fractions
Reference: Ch. 1 — Arithmetic Review — Fractions —
Multiplying Fractions
Question: A patient is prescribed 2/3 of the usual dose. The
usual dose is 3/4 tablet. How much medication will the patient
receive?
A. 1/4 tablet
B. 2/3 tablet
C. 5/12 tablet
D. 1/2 tablet
Correct Answer: D. 1/2 tablet
Rationale:
Correct answer: Multiply the numerators and denominators:
2/3 × 3/4 = 6/12 = 1/2. The 3 cancels with the 3, leaving 2/4,
