Dosage Calculations Made Easy
Solving Problems Using
Dimensional Analysis
8th Edition
• Author(s)Gloria Pearl Craig
TEST BANK
1. Reference
Ch. 1 — Arabic Numbers and Roman Numerals
Stem
A practice medication card lists a dose as XII mg. The nurse
must convert the dose before administration. How many
milligrams is this?
,Options
A. 10 mg
B. 11 mg
C. 12 mg
D. 15 mg
Correct Answer
C. 12 mg
Rationales
Correct: Roman numeral XII equals 10 + 2 = 12. This is a
conversion step the nurse must complete before any dose-
checking or administration.
A: This reflects dropping the value of II.
B: This is an incomplete conversion and misses one unit.
D: This adds extra value not present in the numeral.
Teaching Point
Convert numeral symbols completely before interpreting a
dose.
Citation
Craig, G. P. (n.d.). Dosage Calculations Made Easy: Solving
Problems Using Dimensional Analysis (8th ed.). Ch. 1.
2. Reference
Ch. 1 — Arabic Numbers and Roman Numerals
Stem
A legacy order in a training exercise reads vi tablets by mouth.
,The nurse must translate the order into Arabic numerals before
processing it. How many tablets is that?
Options
A. 4 tablets
B. 5 tablets
C. 6 tablets
D. 7 tablets
Correct Answer
C. 6 tablets
Rationales
Correct: VI = 5 + 1 = 6. Accurate numeral translation prevents
medication errors caused by misreading the order.
A: This is one less than the correct value.
B: This ignores the value of I.
D: This adds one extra tablet incorrectly.
Teaching Point
Roman numerals must be translated exactly, not estimated.
Citation
Craig, G. P. (n.d.). Dosage Calculations Made Easy: Solving
Problems Using Dimensional Analysis (8th ed.). Ch. 1.
3. Reference
Ch. 1 — Fractions — Multiplying Fractions
, Stem
A child is prescribed 3/4 tablet per dose for 4 doses today. The
nurse must calculate the total number of tablets needed. How
many tablets are required?
Options
A. 2 1/4 tablets
B. 3 tablets
C. 3 1/4 tablets
D. 4 tablets
Correct Answer
B. 3 tablets
Rationales
Correct: Set up the calculation as 3/4 tablet/dose × 4 doses = 3
tablets. The dose units cancel, leaving tablets.
A: This reflects multiplying by 3 doses instead of 4.
C: This adds an extra quarter tablet that is not supported by the
calculation.
D: This overestimates the total by one tablet.
Teaching Point
Multiply fractions straight across, then cancel units.
Citation
Craig, G. P. (n.d.). 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. Reference
Ch. 1 — Arabic Numbers and Roman Numerals
Stem
A practice medication card lists a dose as XII mg. The nurse
must convert the dose before administration. How many
milligrams is this?
,Options
A. 10 mg
B. 11 mg
C. 12 mg
D. 15 mg
Correct Answer
C. 12 mg
Rationales
Correct: Roman numeral XII equals 10 + 2 = 12. This is a
conversion step the nurse must complete before any dose-
checking or administration.
A: This reflects dropping the value of II.
B: This is an incomplete conversion and misses one unit.
D: This adds extra value not present in the numeral.
Teaching Point
Convert numeral symbols completely before interpreting a
dose.
Citation
Craig, G. P. (n.d.). Dosage Calculations Made Easy: Solving
Problems Using Dimensional Analysis (8th ed.). Ch. 1.
2. Reference
Ch. 1 — Arabic Numbers and Roman Numerals
Stem
A legacy order in a training exercise reads vi tablets by mouth.
,The nurse must translate the order into Arabic numerals before
processing it. How many tablets is that?
Options
A. 4 tablets
B. 5 tablets
C. 6 tablets
D. 7 tablets
Correct Answer
C. 6 tablets
Rationales
Correct: VI = 5 + 1 = 6. Accurate numeral translation prevents
medication errors caused by misreading the order.
A: This is one less than the correct value.
B: This ignores the value of I.
D: This adds one extra tablet incorrectly.
Teaching Point
Roman numerals must be translated exactly, not estimated.
Citation
Craig, G. P. (n.d.). Dosage Calculations Made Easy: Solving
Problems Using Dimensional Analysis (8th ed.). Ch. 1.
3. Reference
Ch. 1 — Fractions — Multiplying Fractions
, Stem
A child is prescribed 3/4 tablet per dose for 4 doses today. The
nurse must calculate the total number of tablets needed. How
many tablets are required?
Options
A. 2 1/4 tablets
B. 3 tablets
C. 3 1/4 tablets
D. 4 tablets
Correct Answer
B. 3 tablets
Rationales
Correct: Set up the calculation as 3/4 tablet/dose × 4 doses = 3
tablets. The dose units cancel, leaving tablets.
A: This reflects multiplying by 3 doses instead of 4.
C: This adds an extra quarter tablet that is not supported by the
calculation.
D: This overestimates the total by one tablet.
Teaching Point
Multiply fractions straight across, then cancel units.
Citation
Craig, G. P. (n.d.). Dosage Calculations Made Easy: Solving
Problems Using Dimensional Analysis (8th ed.). Ch. 1.
