Dosage Calculations Made Easy
Solving Problems Using
Dimensional Analysis
8th Edition
• Author(s)Gloria Pearl Craig
TEST BANK
1) Roman numerals to Arabic numbers
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A nurse is checking a medication label that reads VIII mg. To
verify the dose before administration, the nurse converts the
Roman numeral to an Arabic number. How many milligrams is
the dose?
,A. 6 mg
B. 8 mg
C. 10 mg
D. 12 mg
Correct Answer: B. 8 mg
Rationale:
Correct: VIII = V (5) + III (3) = 8. The nurse should recognize this
conversion before administering the dose.
A: 6 mg reflects an incorrect subtraction or incomplete count of
the I symbols.
C: 10 mg confuses VIII with X.
D: 12 mg is a counting error and exceeds the stated amount.
Teaching Point: Roman numeral accuracy prevents medication-
label interpretation errors.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
2) Arabic numbers to Roman numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A provider writes an order for a medication quantity of 14 on a
stock-count form that uses Roman numerals. Which Roman
numeral should the nurse document?
,A. XII
B. XIII
C. XIV
D. XV
Correct Answer: C. XIV
Rationale:
Correct: 14 = 10 + 4 = X + IV = XIV.
A: XII = 12.
B: XIII = 13.
D: XV = 15.
Teaching Point: Build Roman numerals by combining tens and
ones correctly.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
3) Roman numeral multiplication
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A medication tray contains 3 packets, and each packet is labeled
IV tablets. How many tablets are in the total supply?
A. 10 tablets
B. 12 tablets
, C. 14 tablets
D. 16 tablets
Correct Answer: B. 12 tablets
Rationale:
Correct: IV = 4 tablets, and 3 packets × 4 tablets = 12 tablets.
A: 10 tablets is an undercount.
C: 14 tablets adds an extra 2 tablets by error.
D: 16 tablets is 4 packets’ worth, not 3.
Teaching Point: Convert Roman numerals first, then multiply.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
4) Roman numeral conversion in a medication label
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A label displays XL next to a medication strength. Before giving
the medication, the nurse verifies the Arabic number
equivalent. What is the value?
A. 30
B. 40
C. 45
D. 50
Correct Answer: B. 40
Solving Problems Using
Dimensional Analysis
8th Edition
• Author(s)Gloria Pearl Craig
TEST BANK
1) Roman numerals to Arabic numbers
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A nurse is checking a medication label that reads VIII mg. To
verify the dose before administration, the nurse converts the
Roman numeral to an Arabic number. How many milligrams is
the dose?
,A. 6 mg
B. 8 mg
C. 10 mg
D. 12 mg
Correct Answer: B. 8 mg
Rationale:
Correct: VIII = V (5) + III (3) = 8. The nurse should recognize this
conversion before administering the dose.
A: 6 mg reflects an incorrect subtraction or incomplete count of
the I symbols.
C: 10 mg confuses VIII with X.
D: 12 mg is a counting error and exceeds the stated amount.
Teaching Point: Roman numeral accuracy prevents medication-
label interpretation errors.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
2) Arabic numbers to Roman numerals
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A provider writes an order for a medication quantity of 14 on a
stock-count form that uses Roman numerals. Which Roman
numeral should the nurse document?
,A. XII
B. XIII
C. XIV
D. XV
Correct Answer: C. XIV
Rationale:
Correct: 14 = 10 + 4 = X + IV = XIV.
A: XII = 12.
B: XIII = 13.
D: XV = 15.
Teaching Point: Build Roman numerals by combining tens and
ones correctly.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
3) Roman numeral multiplication
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A medication tray contains 3 packets, and each packet is labeled
IV tablets. How many tablets are in the total supply?
A. 10 tablets
B. 12 tablets
, C. 14 tablets
D. 16 tablets
Correct Answer: B. 12 tablets
Rationale:
Correct: IV = 4 tablets, and 3 packets × 4 tablets = 12 tablets.
A: 10 tablets is an undercount.
C: 14 tablets adds an extra 2 tablets by error.
D: 16 tablets is 4 packets’ worth, not 3.
Teaching Point: Convert Roman numerals first, then multiply.
Citation: Craig, G. P. (n.d.). Dosage calculations made easy:
Solving problems using dimensional analysis (8th ed.). Ch. 1.
4) Roman numeral conversion in a medication label
Reference: Ch. 1 — Arithmetic Review — Arabic Numbers and
Roman Numerals
Question:
A label displays XL next to a medication strength. Before giving
the medication, the nurse verifies the Arabic number
equivalent. What is the value?
A. 30
B. 40
C. 45
D. 50
Correct Answer: B. 40
