DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse receives an order for 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
Rationale:
Step 1:
Set up dimensional analysis:
650 mg × (1 tablet / 325 mg)
Step 2:
650 ÷ 325 = 2 tablets
Step 3:
Administer 2 tablets.
Medication Safety Note:
Always verify that the ordered dose matches the available
tablet strength before administration.
,Question 2 (Easy)
A provider orders amoxicillin 500 mg PO. The suspension
available is 250 mg per 5 mL. How many milliliters should the
nurse administer?
A. 5 mL
B. 7.5 mL
C. 10 mL
D. 15 mL
Correct Answer: C
Rationale:
Step 1:
500 mg × (5 mL / 250 mg)
Step 2:
500 × 5 = 2500
2500 ÷ 250 = 10 mL
Step 3:
Administer 10 mL.
Medication Safety Note:
Use an oral dosing syringe or medication cup for accurate liquid
measurement.
, Question 3 (Easy)
The healthcare provider prescribes 0.5 g of a medication. The
vial is labeled in milligrams. How many milligrams should the
nurse prepare?
A. 50 mg
B. 500 mg
C. 5,000 mg
D. 0.05 mg
Correct Answer: B
Rationale:
Step 1:
0.5 g × (1000 mg / 1 g)
Step 2:
0.5 × 1000 = 500 mg
Step 3:
Prepare 500 mg.
Medication Safety Note:
Carefully distinguish grams from milligrams to avoid tenfold
dosing errors.
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse receives an order for 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
Rationale:
Step 1:
Set up dimensional analysis:
650 mg × (1 tablet / 325 mg)
Step 2:
650 ÷ 325 = 2 tablets
Step 3:
Administer 2 tablets.
Medication Safety Note:
Always verify that the ordered dose matches the available
tablet strength before administration.
,Question 2 (Easy)
A provider orders amoxicillin 500 mg PO. The suspension
available is 250 mg per 5 mL. How many milliliters should the
nurse administer?
A. 5 mL
B. 7.5 mL
C. 10 mL
D. 15 mL
Correct Answer: C
Rationale:
Step 1:
500 mg × (5 mL / 250 mg)
Step 2:
500 × 5 = 2500
2500 ÷ 250 = 10 mL
Step 3:
Administer 10 mL.
Medication Safety Note:
Use an oral dosing syringe or medication cup for accurate liquid
measurement.
, Question 3 (Easy)
The healthcare provider prescribes 0.5 g of a medication. The
vial is labeled in milligrams. How many milligrams should the
nurse prepare?
A. 50 mg
B. 500 mg
C. 5,000 mg
D. 0.05 mg
Correct Answer: B
Rationale:
Step 1:
0.5 g × (1000 mg / 1 g)
Step 2:
0.5 × 1000 = 500 mg
Step 3:
Prepare 500 mg.
Medication Safety Note:
Carefully distinguish grams from milligrams to avoid tenfold
dosing errors.
