DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse receives an order for amoxicillin 500 mg PO. The
pharmacy dispenses 250-mg capsules.
How many capsules should the nurse administer?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Correct Answer: B. 2 capsules
Rationale:
Step 1: Set up dimensional analysis.
[
500\ \text{mg} \times \frac{1\ \text{capsule}}{250\ \text{mg}}
]
Step 2: Cancel mg.
[
=\frac{500}{250}=2\ \text{capsules}
]
Step 3: Administer 2 capsules.
Medication Safety Note: Always compare the prescribed dose
with the medication strength before administering oral
medications.
,Question 2 (Easy)
An order reads:
Acetaminophen 650 mg PO
Available:
325-mg tablets
How many tablets should the nurse administer?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: B. 2 tablets
Rationale
Step 1
[
650\ \text{mg}\times\frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2
, [
=\frac{650}{325}=2
]
Step 3
Administer 2 tablets.
Medication Safety Note: Verify the total daily acetaminophen
dose does not exceed institutional recommendations.
Question 3 (Easy)
The provider orders:
Ibuprofen 300 mg PO
Available:
100 mg/5 mL
How many mL should the nurse administer?
A. 10 mL
B. 12.5 mL
C. 15 mL
D. 20 mL
Correct Answer: C. 15 mL
Rationale
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse receives an order for amoxicillin 500 mg PO. The
pharmacy dispenses 250-mg capsules.
How many capsules should the nurse administer?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Correct Answer: B. 2 capsules
Rationale:
Step 1: Set up dimensional analysis.
[
500\ \text{mg} \times \frac{1\ \text{capsule}}{250\ \text{mg}}
]
Step 2: Cancel mg.
[
=\frac{500}{250}=2\ \text{capsules}
]
Step 3: Administer 2 capsules.
Medication Safety Note: Always compare the prescribed dose
with the medication strength before administering oral
medications.
,Question 2 (Easy)
An order reads:
Acetaminophen 650 mg PO
Available:
325-mg tablets
How many tablets should the nurse administer?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: B. 2 tablets
Rationale
Step 1
[
650\ \text{mg}\times\frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2
, [
=\frac{650}{325}=2
]
Step 3
Administer 2 tablets.
Medication Safety Note: Verify the total daily acetaminophen
dose does not exceed institutional recommendations.
Question 3 (Easy)
The provider orders:
Ibuprofen 300 mg PO
Available:
100 mg/5 mL
How many mL should the nurse administer?
A. 10 mL
B. 12.5 mL
C. 15 mL
D. 20 mL
Correct Answer: C. 15 mL
Rationale
