DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy – Oral Tablet Calculation)
A patient is prescribed amoxicillin 750 mg orally every 12 hours.
Tablets available are 250 mg each. How many tablets should the
nurse administer per dose?
A. 2 tablets
B. 2.5 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: C
Rationale:
Step 1: Set up dimensional analysis.
[
750\ \text{mg} \times \frac{1\ \text{tablet}}{250\ \text{mg}}
]
Step 2: Cancel mg.
[
=3\ \text{tablets}
]
Step 3: Administer 3 tablets.
Medication Safety Note:
Always verify tablet strength before administration to prevent
underdosing or overdosing.
,Question 2 (Easy – Liquid Medication)
A provider orders acetaminophen 480 mg orally. The
medication label reads 160 mg/5 mL. How many milliliters
should the nurse administer?
A. 10 mL
B. 12.5 mL
C. 15 mL
D. 20 mL
Correct Answer: C
Rationale:
Step 1:
[
480\ \text{mg}\times\frac{5\ \text{mL}}{160\ \text{mg}}
]
Step 2:
[
=\frac{2400}{160}=15\ \text{mL}
]
Step 3: Administer 15 mL.
, Medication Safety Note:
Use an oral syringe or medication cup for accurate liquid
measurement.
Question 3 (Easy – Metric Conversion)
A prescription calls for 2.5 g of medication. How many
milligrams is this?
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Correct Answer: C
Rationale:
Step 1:
[
2.5\ \text{g}\times\frac{1000\ \text{mg}}{1\ \text{g}}
]
Step 2:
[
=2500\ \text{mg}
]
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy – Oral Tablet Calculation)
A patient is prescribed amoxicillin 750 mg orally every 12 hours.
Tablets available are 250 mg each. How many tablets should the
nurse administer per dose?
A. 2 tablets
B. 2.5 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: C
Rationale:
Step 1: Set up dimensional analysis.
[
750\ \text{mg} \times \frac{1\ \text{tablet}}{250\ \text{mg}}
]
Step 2: Cancel mg.
[
=3\ \text{tablets}
]
Step 3: Administer 3 tablets.
Medication Safety Note:
Always verify tablet strength before administration to prevent
underdosing or overdosing.
,Question 2 (Easy – Liquid Medication)
A provider orders acetaminophen 480 mg orally. The
medication label reads 160 mg/5 mL. How many milliliters
should the nurse administer?
A. 10 mL
B. 12.5 mL
C. 15 mL
D. 20 mL
Correct Answer: C
Rationale:
Step 1:
[
480\ \text{mg}\times\frac{5\ \text{mL}}{160\ \text{mg}}
]
Step 2:
[
=\frac{2400}{160}=15\ \text{mL}
]
Step 3: Administer 15 mL.
, Medication Safety Note:
Use an oral syringe or medication cup for accurate liquid
measurement.
Question 3 (Easy – Metric Conversion)
A prescription calls for 2.5 g of medication. How many
milligrams is this?
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Correct Answer: C
Rationale:
Step 1:
[
2.5\ \text{g}\times\frac{1000\ \text{mg}}{1\ \text{g}}
]
Step 2:
[
=2500\ \text{mg}
]
