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 provider orders a patient to take 2 tablets of
a medication daily for VIII days. How many tablets should the
nurse tell the patient to prepare for the full course?
Options:
A. 12 tablets
,B. 14 tablets
C. 16 tablets
D. 18 tablets
Correct Answer: C. 16 tablets
Rationale:
Correct: Convert VIII to 8, then multiply 2 tablets/day × 8 days =
16 tablets. The units cancel to tablets, which is the correct final
quantity.
Incorrect A: 12 tablets reflects multiplying by 6 or misreading
the Roman numeral.
Incorrect B: 14 tablets is a common miscounting error from
converting VIII incorrectly.
Incorrect D: 18 tablets overestimates the total and is not
supported by the calculation.
Teaching Point: Convert Roman numerals correctly before
calculating total doses.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1 —
Arabic Numbers and Roman Numerals.
2) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arabic Numbers and Roman Numerals
Question Stem: A postoperative chart notes that a client is on
day XIV after surgery. The nurse needs to record this as an
Arabic number in the medication record. What number should
,be documented?
Options:
A. 12
B. 14
C. 16
D. 24
Correct Answer: B. 14
Rationale:
Correct: XIV equals 10 + 4 = 14. This is the correct Arabic
conversion.
Incorrect A: 12 is a subtraction error or misread numeral.
Incorrect C: 16 would be XVI, not XIV.
Incorrect D: 24 is not a valid conversion of XIV.
Teaching Point: Roman numeral conversion errors can lead to
documentation mistakes.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1 —
Arabic Numbers and Roman Numerals.
3) Fractions — Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem: A provider orders 3/4 of a 2-mg tablet. The
nurse must determine the amount of medication the patient
will receive. How many milligrams is this dose?
Options:
, A. 1.25 mg
B. 1.5 mg
C. 2.5 mg
D. 3.0 mg
Correct Answer: B. 1.5 mg
Rationale:
Correct: Multiply 3/4 × 2 mg = 6/4 mg = 1.5 mg. The tablet units
cancel, leaving milligrams.
Incorrect A: 1.25 mg comes from an incorrect fraction
conversion or arithmetic error.
Incorrect C: 2.5 mg overestimates the ordered fraction.
Incorrect D: 3.0 mg reflects adding instead of multiplying.
Teaching Point: Multiply the fraction by the full strength, then
simplify units.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1 —
Fractions — Multiplying Fractions.
4) Fractions — Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem: A nurse prepares 1/2 of a medication volume
that is originally measured as 3/8 mL. How much medication
should be administered?
Options:
A. 3/16 mL
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 provider orders a patient to take 2 tablets of
a medication daily for VIII days. How many tablets should the
nurse tell the patient to prepare for the full course?
Options:
A. 12 tablets
,B. 14 tablets
C. 16 tablets
D. 18 tablets
Correct Answer: C. 16 tablets
Rationale:
Correct: Convert VIII to 8, then multiply 2 tablets/day × 8 days =
16 tablets. The units cancel to tablets, which is the correct final
quantity.
Incorrect A: 12 tablets reflects multiplying by 6 or misreading
the Roman numeral.
Incorrect B: 14 tablets is a common miscounting error from
converting VIII incorrectly.
Incorrect D: 18 tablets overestimates the total and is not
supported by the calculation.
Teaching Point: Convert Roman numerals correctly before
calculating total doses.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1 —
Arabic Numbers and Roman Numerals.
2) Arabic Numbers and Roman Numerals
Reference: Ch. 1 — Arabic Numbers and Roman Numerals
Question Stem: A postoperative chart notes that a client is on
day XIV after surgery. The nurse needs to record this as an
Arabic number in the medication record. What number should
,be documented?
Options:
A. 12
B. 14
C. 16
D. 24
Correct Answer: B. 14
Rationale:
Correct: XIV equals 10 + 4 = 14. This is the correct Arabic
conversion.
Incorrect A: 12 is a subtraction error or misread numeral.
Incorrect C: 16 would be XVI, not XIV.
Incorrect D: 24 is not a valid conversion of XIV.
Teaching Point: Roman numeral conversion errors can lead to
documentation mistakes.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1 —
Arabic Numbers and Roman Numerals.
3) Fractions — Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem: A provider orders 3/4 of a 2-mg tablet. The
nurse must determine the amount of medication the patient
will receive. How many milligrams is this dose?
Options:
, A. 1.25 mg
B. 1.5 mg
C. 2.5 mg
D. 3.0 mg
Correct Answer: B. 1.5 mg
Rationale:
Correct: Multiply 3/4 × 2 mg = 6/4 mg = 1.5 mg. The tablet units
cancel, leaving milligrams.
Incorrect A: 1.25 mg comes from an incorrect fraction
conversion or arithmetic error.
Incorrect C: 2.5 mg overestimates the ordered fraction.
Incorrect D: 3.0 mg reflects adding instead of multiplying.
Teaching Point: Multiply the fraction by the full strength, then
simplify units.
Citation: Craig, G. P. (2025). Dosage Calculations Made Easy:
Solving Problems Using Dimensional Analysis (8th ed.). Ch. 1 —
Fractions — Multiplying Fractions.
4) Fractions — Multiplying Fractions
Reference: Ch. 1 — Fractions — Multiplying Fractions
Question Stem: A nurse prepares 1/2 of a medication volume
that is originally measured as 3/8 mL. How much medication
should be administered?
Options:
A. 3/16 mL
