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 nurse is preparing to administer acetaminophen 650 mg PO.
The available tablets are 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. 2 tablets
Rationale:
Step 1: Setup
[
650\ \text{mg} \times \frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2: Dimensional Analysis
[
\frac{650}{325}=2
]
Step 3: Solution
Administer 2 tablets.

,Medication Safety Note:
Always verify tablet strength before administration to avoid
underdosing or overdosing.


Question 2 (Easy)
A provider prescribes amoxicillin 500 mg PO. The suspension
available is 250 mg/5 mL. How many milliliters should the nurse
administer?
A. 5 mL
B. 8 mL
C. 10 mL
D. 15 mL
Correct Answer: C. 10 mL
Rationale:
Step 1: Setup
[
500\ \text{mg}\times\frac{5\ \text{mL}}{250\ \text{mg}}
]
Step 2: Dimensional Analysis

, [
\frac{500\times5}{250}=10
]
Step 3: Solution
Administer 10 mL.
Medication Safety Note:
Shake suspensions thoroughly before measuring the dose.


Question 3 (Easy)
Convert 1.5 g to mg.
A. 15 mg
B. 150 mg
C. 1,500 mg
D. 15,000 mg
Correct Answer: C. 1,500 mg
Rationale:
Step 1: Conversion Factor
1 g = 1,000 mg
Step 2: Dimensional Analysis