Calculation of Drug Dosages: A Work Text, 12th Edition
TEST BANK
Sheila J. Ogden & Linda Fluharty | Complete Review
1,200 Questions • Correct Answer After Every Question • Detailed Teaching Rationale
2026/2027 Updated Study Edition
Page 1
,Coverage
• Chapter 1: Fractions — 64 questions
• Chapter 2: Decimals — 64 questions
• Chapter 3: Percents — 64 questions
• Chapter 4: Ratios — 63 questions
• Chapter 5: Proportions — 63 questions
• Chapter 6: Metric and Household Measurements — 63 questions
• Chapter 7: Calculations Used in Patient Assessments — 63 questions
• Chapter 8: Safety in Medication Administration — 63 questions
• Chapter 9: Interpretation of the Licensed Prescriber’s Orders — 63 questions
• Chapter 10: Reading Medication Labels — 63 questions
• Chapter 11: Oral Dosages — 63 questions
• Chapter 12: Parenteral Dosages — 63 questions
• Chapter 13: Dosages Measured in Units — 63 questions
• Chapter 14: Reconstitution of Medications — 63 questions
• Chapter 15: Intravenous Flow Rates — 63 questions
• Chapter 16: Intravenous Flow Rates for Dosages Measured in Units — 63 questions
• Chapter 17: Critical Care Intravenous Flow Rates — 63 questions
• Chapter 18: Pediatric Dosages — 63 questions
• Chapter 19: Obstetric Dosages — 63 questions
Page 2
,Chapter 1: Fractions
1. Calculate 1/2 × 1/3. Give the answer in simplest form.
A. 3/4
B. 1/6
C. 1/2
D. 2/3
Answer: B — 1/6
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 1/6; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
2. Calculate 1/2 - 1/2. Give the answer in simplest form.
A. 0
B. 1/2
C. 2/3
D. 3/4
Answer: A — 0
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 0; reducing the fraction removes common factors and gives the safest form for
later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible units
are converted before arithmetic and the unwanted units cancel. Round only at the final step unless the
problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
3. Calculate 7/8 - 2/5. Give the answer in simplest form.
A. 3/4
B. 1/2
C. 19/40
D. 2/3
Page 3
, Answer: C — 19/40
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 19/40; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
4. Calculate 3/4 - 1/3. Give the answer in simplest form.
A. 2/3
B. 5/12
C. 1/2
D. 3/4
Answer: B — 5/12
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 5/12; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
5. Calculate 1/2 + 1/8. Give the answer in simplest form.
A. 3/4
B. 5/8
C. 1/2
D. 2/3
Answer: B — 5/8
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 5/8; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
Page 4
TEST BANK
Sheila J. Ogden & Linda Fluharty | Complete Review
1,200 Questions • Correct Answer After Every Question • Detailed Teaching Rationale
2026/2027 Updated Study Edition
Page 1
,Coverage
• Chapter 1: Fractions — 64 questions
• Chapter 2: Decimals — 64 questions
• Chapter 3: Percents — 64 questions
• Chapter 4: Ratios — 63 questions
• Chapter 5: Proportions — 63 questions
• Chapter 6: Metric and Household Measurements — 63 questions
• Chapter 7: Calculations Used in Patient Assessments — 63 questions
• Chapter 8: Safety in Medication Administration — 63 questions
• Chapter 9: Interpretation of the Licensed Prescriber’s Orders — 63 questions
• Chapter 10: Reading Medication Labels — 63 questions
• Chapter 11: Oral Dosages — 63 questions
• Chapter 12: Parenteral Dosages — 63 questions
• Chapter 13: Dosages Measured in Units — 63 questions
• Chapter 14: Reconstitution of Medications — 63 questions
• Chapter 15: Intravenous Flow Rates — 63 questions
• Chapter 16: Intravenous Flow Rates for Dosages Measured in Units — 63 questions
• Chapter 17: Critical Care Intravenous Flow Rates — 63 questions
• Chapter 18: Pediatric Dosages — 63 questions
• Chapter 19: Obstetric Dosages — 63 questions
Page 2
,Chapter 1: Fractions
1. Calculate 1/2 × 1/3. Give the answer in simplest form.
A. 3/4
B. 1/6
C. 1/2
D. 2/3
Answer: B — 1/6
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 1/6; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
2. Calculate 1/2 - 1/2. Give the answer in simplest form.
A. 0
B. 1/2
C. 2/3
D. 3/4
Answer: A — 0
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 0; reducing the fraction removes common factors and gives the safest form for
later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible units
are converted before arithmetic and the unwanted units cancel. Round only at the final step unless the
problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
3. Calculate 7/8 - 2/5. Give the answer in simplest form.
A. 3/4
B. 1/2
C. 19/40
D. 2/3
Page 3
, Answer: C — 19/40
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 19/40; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
4. Calculate 3/4 - 1/3. Give the answer in simplest form.
A. 2/3
B. 5/12
C. 1/2
D. 3/4
Answer: B — 5/12
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 5/12; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
ordered dose, available concentration, route, and clinical context. Why the distractors are incorrect:
alternative numeric choices commonly result from reversing desired and available quantities, omitting a
conversion, multiplying instead of dividing, using the wrong time unit, or rounding too early.
5. Calculate 1/2 + 1/8. Give the answer in simplest form.
A. 3/4
B. 5/8
C. 1/2
D. 2/3
Answer: B — 5/8
Rationale: Convert to compatible fractions or multiply numerators and denominators as required. The
exact result simplifies to 5/8; reducing the fraction removes common factors and gives the safest form
for later dosage work. Calculation reasoning: keep the units visible through the setup so incompatible
units are converted before arithmetic and the unwanted units cancel. Round only at the final step unless
the problem or institutional policy specifies otherwise, then perform a reasonableness check against the
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