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:
The pharmacy sends a legacy inventory label that reads XIV
tablets for a medication the nurse must stock on the unit. How
many tablets does the label indicate?
,This is a transcription check before the medication is placed in
the cabinet.
Options:
A. 12 tablets
B. 14 tablets
C. 16 tablets
D. 24 tablets
Correct Answer: B. 14 tablets
Rationale:
Correct answer: XIV = 10 + 4 = 14. The Roman numeral X
represents 10, and IV represents 4 because I before V subtracts
1 from 5. Accurate numeral conversion prevents stocking or
documenting the wrong quantity.
A: 12 is a common mistake from ignoring the subtraction rule in
IV.
C: 16 reflects adding X (10) + VI (6), which is not the numeral
shown.
D: 24 would require XXIV, not XIV.
Teaching Point: Roman numeral subtraction rules change the
value of the symbol.
Citation: Craig, G. P. (2025). 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 medication tray card shows a strength of IX mg for a dose
used in a pediatric clinic. What is the Arabic numeral
equivalent?
The nurse must verify the correct strength before
administration.
Options:
A. 7 mg
B. 8 mg
C. 9 mg
D. 11 mg
Correct Answer: C. 9 mg
Rationale:
Correct answer: IX = 9 because I placed before X means
subtract 1 from 10. This is a direct numeral conversion needed
for safe reading of older labels or transcribed values.
A: 7 reflects a subtraction of 3, which is not supported by IX.
B: 8 is a common near miss when the value of I is overlooked.
D: 11 would be XI, not IX.
Teaching Point: When I comes before X, subtract 1 from 10.
Citation: Craig, G. P. (2025). 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 supply bin lists XXII capsules of a vitamin supplement. How
many capsules are in the bin?
The nurse is counting stock before dispensing doses to the unit.
Options:
A. 20 capsules
B. 21 capsules
C. 22 capsules
D. 24 capsules
Correct Answer: C. 22 capsules
Rationale:
Correct answer: XXII = 10 + 10 + 1 + 1 = 22. This is an additive
Roman numeral pattern with no subtraction.
A: 20 is missing the two I values.
B: 21 is missing one I value.
D: 24 would be XXIV, not XXII.
Teaching Point: Repeated Roman numerals are added, not
multiplied.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
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:
The pharmacy sends a legacy inventory label that reads XIV
tablets for a medication the nurse must stock on the unit. How
many tablets does the label indicate?
,This is a transcription check before the medication is placed in
the cabinet.
Options:
A. 12 tablets
B. 14 tablets
C. 16 tablets
D. 24 tablets
Correct Answer: B. 14 tablets
Rationale:
Correct answer: XIV = 10 + 4 = 14. The Roman numeral X
represents 10, and IV represents 4 because I before V subtracts
1 from 5. Accurate numeral conversion prevents stocking or
documenting the wrong quantity.
A: 12 is a common mistake from ignoring the subtraction rule in
IV.
C: 16 reflects adding X (10) + VI (6), which is not the numeral
shown.
D: 24 would require XXIV, not XIV.
Teaching Point: Roman numeral subtraction rules change the
value of the symbol.
Citation: Craig, G. P. (2025). 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 medication tray card shows a strength of IX mg for a dose
used in a pediatric clinic. What is the Arabic numeral
equivalent?
The nurse must verify the correct strength before
administration.
Options:
A. 7 mg
B. 8 mg
C. 9 mg
D. 11 mg
Correct Answer: C. 9 mg
Rationale:
Correct answer: IX = 9 because I placed before X means
subtract 1 from 10. This is a direct numeral conversion needed
for safe reading of older labels or transcribed values.
A: 7 reflects a subtraction of 3, which is not supported by IX.
B: 8 is a common near miss when the value of I is overlooked.
D: 11 would be XI, not IX.
Teaching Point: When I comes before X, subtract 1 from 10.
Citation: Craig, G. P. (2025). 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 supply bin lists XXII capsules of a vitamin supplement. How
many capsules are in the bin?
The nurse is counting stock before dispensing doses to the unit.
Options:
A. 20 capsules
B. 21 capsules
C. 22 capsules
D. 24 capsules
Correct Answer: C. 22 capsules
Rationale:
Correct answer: XXII = 10 + 10 + 1 + 1 = 22. This is an additive
Roman numeral pattern with no subtraction.
A: 20 is missing the two I values.
B: 21 is missing one I value.
D: 24 would be XXIV, not XXII.
Teaching Point: Repeated Roman numerals are added, not
multiplied.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
