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 — Arabic Numbers and Roman Numerals
Question Stem:
A medication training label shows XIV mg. The nurse must
document the amount in Arabic numerals before
administration. How many milligrams is this?
Options:
A. 12 mg
,B. 14 mg
C. 16 mg
D. 18 mg
Correct Answer: B. 14 mg
Rationale:
Correct: XIV = X (10) + IV (4) = 14 mg. Converting Roman
numerals accurately prevents transcription errors in medication
records.
A: 12 mg misreads XIV as X + II.
C: 16 mg incorrectly adds VI instead of IV.
D: 18 mg is a larger additive error and unsafe.
Teaching Point: Roman numerals must be converted exactly
before calculating or charting.
Citation: Craig, G. P. (2024). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
2) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arabic Numbers and Roman Numerals
Question Stem:
A provider writes an order for 29 tablets in a practice scenario.
The nurse must identify the correct Roman numeral form on a
mock label. Which Roman numeral represents 29?
Options:
A. XXIV
,B. XXVIII
C. XXIX
D. XXX
Correct Answer: C. XXIX
Rationale:
Correct: 29 = 20 + 9 = XX + IX = XXIX. Correct numeral
conversion supports safe order verification.
A: XXIV is 24, not 29.
B: XXVIII is 28, off by one.
D: XXX is 30, which overstates the order.
Teaching Point: Build Roman numerals by separating tens and
ones.
Citation: Craig, G. P. (2024). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
3) Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem:
A client is ordered to take 2/3 of a 3/4-tablet dose. The nurse
must calculate the fraction of one tablet to administer. How
much of one tablet is given?
Options:
A. 1/4 tablet
B. 1/2 tablet
, C. 3/4 tablet
D. 5/6 tablet
Correct Answer: B. 1/2 tablet
Rationale:
Correct: 23×34=612=12\frac{2}{3} \times \frac{3}{4} =
\frac{6}{12} = \frac{1}{2}32×43=126=21. The common factor of
3 cancels, leaving 1/2 tablet.
A: 1/4 reflects an error in multiplying numerators and
denominators incorrectly.
C: 3/4 ignores the 2/3 portion of the order.
D: 5/6 is not the result of the product and would be an
overdose.
Teaching Point: Multiply fractions straight across, then simplify
before giving the dose.
Citation: Craig, G. P. (2024). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
4) Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem:
A liquid medication practice item calls for 3/5 of a 2/3 mL dose.
The nurse must calculate the amount to prepare. How many
milliliters will be administered?
Solving Problems Using
Dimensional Analysis
8th Edition
• Author(s)Gloria Pearl Craig
TEST BANK
1) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arabic Numbers and Roman Numerals
Question Stem:
A medication training label shows XIV mg. The nurse must
document the amount in Arabic numerals before
administration. How many milligrams is this?
Options:
A. 12 mg
,B. 14 mg
C. 16 mg
D. 18 mg
Correct Answer: B. 14 mg
Rationale:
Correct: XIV = X (10) + IV (4) = 14 mg. Converting Roman
numerals accurately prevents transcription errors in medication
records.
A: 12 mg misreads XIV as X + II.
C: 16 mg incorrectly adds VI instead of IV.
D: 18 mg is a larger additive error and unsafe.
Teaching Point: Roman numerals must be converted exactly
before calculating or charting.
Citation: Craig, G. P. (2024). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
2) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arabic Numbers and Roman Numerals
Question Stem:
A provider writes an order for 29 tablets in a practice scenario.
The nurse must identify the correct Roman numeral form on a
mock label. Which Roman numeral represents 29?
Options:
A. XXIV
,B. XXVIII
C. XXIX
D. XXX
Correct Answer: C. XXIX
Rationale:
Correct: 29 = 20 + 9 = XX + IX = XXIX. Correct numeral
conversion supports safe order verification.
A: XXIV is 24, not 29.
B: XXVIII is 28, off by one.
D: XXX is 30, which overstates the order.
Teaching Point: Build Roman numerals by separating tens and
ones.
Citation: Craig, G. P. (2024). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
3) Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem:
A client is ordered to take 2/3 of a 3/4-tablet dose. The nurse
must calculate the fraction of one tablet to administer. How
much of one tablet is given?
Options:
A. 1/4 tablet
B. 1/2 tablet
, C. 3/4 tablet
D. 5/6 tablet
Correct Answer: B. 1/2 tablet
Rationale:
Correct: 23×34=612=12\frac{2}{3} \times \frac{3}{4} =
\frac{6}{12} = \frac{1}{2}32×43=126=21. The common factor of
3 cancels, leaving 1/2 tablet.
A: 1/4 reflects an error in multiplying numerators and
denominators incorrectly.
C: 3/4 ignores the 2/3 portion of the order.
D: 5/6 is not the result of the product and would be an
overdose.
Teaching Point: Multiply fractions straight across, then simplify
before giving the dose.
Citation: Craig, G. P. (2024). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1.
4) Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem:
A liquid medication practice item calls for 3/5 of a 2/3 mL dose.
The nurse must calculate the amount to prepare. How many
milliliters will be administered?
