Solving Problems Using Dimensional

DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG




TEST BANK

,Question 1 (Easy)
A patient is prescribed amoxicillin 750 mg PO. The medication
available is 250 mg per capsule. How many capsules should the
nurse administer?
A. 2 capsules
B. 2.5 capsules
C. 3 capsules
D. 4 capsules
Correct Answer: C
Rationale:
Step 1: Set up dimensional analysis.
[
750\ \text{mg} \times \frac{1\ \text{capsule}}{250\ \text{mg}}
]
Step 2: Cancel mg.
[
=3\ \text{capsules}
]
Step 3: Administer 3 capsules.
Medication Safety Note: Verify the prescribed dose before
administering multiple capsules to prevent dosing errors.

,Question 2 (Easy)
The provider prescribes acetaminophen 650 mg PO. Tablets
available are 325 mg each. How many tablets should be
administered?
A. 1 tablet
B. 2 tablets
C. 3 tablets
D. 4 tablets
Correct Answer: B
Rationale:
Step 1:
[
650\ \text{mg}\times\frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2:
[
=2\ \text{tablets}
]
Step 3: Administer 2 tablets.
Medication Safety Note: Confirm that the total dose does not
exceed the recommended daily maximum.

, Question 3 (Easy)
A patient is prescribed 15 mL of cough syrup. A household
teaspoon holds approximately 5 mL. How many teaspoons
should the nurse administer?
A. 2 tsp
B. 2.5 tsp
C. 3 tsp
D. 4 tsp
Correct Answer: C
Rationale:
Step 1:
[
15\ \text{mL}\times\frac{1\ \text{tsp}}{5\ \text{mL}}
]
Step 2:
[
=3\ \text{tsp}
]
Step 3: Give 3 teaspoons.