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 provider prescribes amoxicillin 500 mg PO. The medication is
available as 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
Rationale:
Step 1: Setup
[
500\text{ mg ordered} \times \frac{1\text{ capsule}}{250\text{
mg}}
]
Step 2: Dimensional Analysis
[
\frac{500}{250}=2
]
Step 3: Solution
Administer 2 capsules.

,Medication Safety Note:
Always compare the prescribed dose with the strength on the
medication label before administration.


Question 2 (Easy)
A patient is prescribed acetaminophen 650 mg PO. The
available tablets contain 325 mg each. How many tablets
should the nurse administer?
A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 3 tablets
Correct Answer: C
Rationale:
Step 1: Setup
[
650\text{ mg}\times\frac{1\text{ tablet}}{325\text{ mg}}
]
Step 2: Calculation

, [
650\div325=2
]
Step 3: Solution
Administer 2 tablets.
Medication Safety Note:
Verify whether tablets are scored before splitting.


Question 3 (Easy)
A prescription reads 30 mL of cough syrup. Household
measuring devices are unavailable. How many teaspoons
should the nurse use?
A. 2 tsp
B. 4 tsp
C. 6 tsp
D. 8 tsp
Correct Answer: C
Rationale:
Step 1: Conversion
1 teaspoon = 5 mL