Solving Problems Using Dimensional

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




TEST BANK

,NCLEX-RN Medication Calculation Practice Examination
Comprehensive Mixed Review
Part 1 (Questions 1–5)


Question 1 (Easy)
A healthcare provider prescribes Amoxicillin 500 mg PO. The
medication available is 250 mg per capsule.
How many capsules should the nurse administer?
A. 1 capsule
B. 1.5 capsules
C. 2 capsules
D. 3 capsules
Correct Answer: C. 2 capsules
Rationale
Step 1: Identify the ordered dose
Ordered = 500 mg
Available = 250 mg/capsule
Step 2: Set up dimensional analysis

,[
500\ \text{mg}\times\frac{1\ \text{capsule}}{250\ \text{mg}}
]
The mg units cancel.
[
=\frac{500}{250}=2\ \text{capsules}
]
Step 3: Determine the answer
Administer 2 capsules.
Medication Safety Note:
Always verify that oral capsules can be swallowed whole and
should not be crushed unless specifically approved.


Question 2 (Easy)
A provider orders Acetaminophen 650 mg PO.
The medication label reads 325 mg/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: Ordered dose
650 mg
Available:
325 mg/tablet
Step 2: Dimensional analysis
[
650\ \text{mg}\times\frac{1\ \text{tablet}}{325\ \text{mg}}
]
Cancel mg.
[
=\frac{650}{325}=2
]
Step 3: Solution
Administer 2 tablets.
Medication Safety Note:
Check the maximum daily acetaminophen dose from all sources
before administration.


Question 3 (Easy)