DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy) – Dimensional Analysis Fundamentals
A provider prescribes acetaminophen 650 mg PO. The
medication label reads 325 mg per tablet.
How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Correct Answer: C. 2 tablets
Rationale:
Step 1: Set up dimensional analysis.
[
650\ \text{mg} \times \frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2: Cancel mg.
[
650 \div 325 = 2
]
Step 3: Administer 2 tablets.
Medication Safety Note:
Always verify tablet strength before administering multiple
tablets.
,Question 2 (Easy) – Liquid Medication Calculation
A child is prescribed 300 mg of an antibiotic suspension.
The bottle is labeled:
150 mg per 5 mL
How many mL should the nurse administer?
A. 5 mL
B. 7.5 mL
C. 10 mL
D. 15 mL
Correct Answer: C. 10 mL
Rationale:
Step 1:
[
300\ \text{mg}\times\frac{5\ \text{mL}}{150\ \text{mg}}
]
Step 2:
[
300\times5=1500
]
, [
1500\div150=10
]
Step 3:
Administer 10 mL.
Medication Safety Note:
Measure liquid medications using an oral syringe or medication
cup, not a household spoon.
Question 3 (Easy) – Metric Conversion
Convert 2.5 grams into milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Correct Answer: C. 2,500 mg
Rationale:
Step 1:
Use
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy) – Dimensional Analysis Fundamentals
A provider prescribes acetaminophen 650 mg PO. The
medication label reads 325 mg per tablet.
How many tablets should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Correct Answer: C. 2 tablets
Rationale:
Step 1: Set up dimensional analysis.
[
650\ \text{mg} \times \frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2: Cancel mg.
[
650 \div 325 = 2
]
Step 3: Administer 2 tablets.
Medication Safety Note:
Always verify tablet strength before administering multiple
tablets.
,Question 2 (Easy) – Liquid Medication Calculation
A child is prescribed 300 mg of an antibiotic suspension.
The bottle is labeled:
150 mg per 5 mL
How many mL should the nurse administer?
A. 5 mL
B. 7.5 mL
C. 10 mL
D. 15 mL
Correct Answer: C. 10 mL
Rationale:
Step 1:
[
300\ \text{mg}\times\frac{5\ \text{mL}}{150\ \text{mg}}
]
Step 2:
[
300\times5=1500
]
, [
1500\div150=10
]
Step 3:
Administer 10 mL.
Medication Safety Note:
Measure liquid medications using an oral syringe or medication
cup, not a household spoon.
Question 3 (Easy) – Metric Conversion
Convert 2.5 grams into milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Correct Answer: C. 2,500 mg
Rationale:
Step 1:
Use
