Dosage Calculations Made Easy: Solving Problems Using Dimensional Analysis 8th Edition Test Bank | Chapter-by-Chapter Exam Prep

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: Identify the ordered dose and available dose.
Ordered = 500 mg
Available = 250 mg/capsule
Step 2: Set up dimensional analysis.
500 mg×1 capsule250 mg=2 capsules500\ \text{mg} \times
\frac{1\ \text{capsule}}{250\ \text{mg}} = 2\
\text{capsules}500 mg×250 mg1 capsule=2 capsules
Step 3: Administer 2 capsules.
Medication Safety Note:
Verify the medication strength before administering multiple
capsules.

,Question 2 (Easy)
The provider orders acetaminophen 650 mg PO. The
medication is supplied as 325 mg tablets. 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:
Ordered = 650 mg
Available = 325 mg/tablet
Step 2
650 mg×1 tablet325 mg=2 tablets650\ \text{mg}\times\frac{1\
\text{tablet}}{325\ \text{mg}}=2\
\text{tablets}650 mg×325 mg1 tablet=2 tablets
Step 3
Administer 2 tablets.

, Medication Safety Note
Always confirm that tablets may be split if a partial tablet is
required.


Question 3 (Easy)
A child is prescribed 15 mL of cough syrup. The medication cup
is calibrated in teaspoons. How many teaspoons should the
nurse administer?
A. 1 tsp
B. 2 tsp
C. 3 tsp
D. 4 tsp
Correct Answer: C
Rationale
Step 1
Conversion:
1 teaspoon = 5 mL
Step 2
15 mL×1 tsp5 mL=3 tsp15\ \text{mL}\times\frac{1\
\text{tsp}}{5\ \text{mL}}=3\ \text{tsp}15 mL×5 mL1 tsp=3 tsp