DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A client is prescribed acetaminophen 650 mg PO. The
medication available is 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. 2 tablets
Rationale:
Step 1: Identify the ordered dose and available dose.
650 mg ordered
325 mg/tablet available
Step 2: Set up dimensional analysis.
650 mg × (1 tablet / 325 mg)
Step 3: Solve.
650 ÷ 325 = 2 tablets
Medication Safety Note:
Always verify that scored tablets may be split if a fractional dose
is required.
,Question 2 (Easy)
A prescription reads amoxicillin 500 mg PO. The suspension
available is 250 mg per 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:
Ordered = 500 mg
Available = 250 mg/5 mL
Step 2:
500 mg × (5 mL /250 mg)
Step 3:
=10 mL
Medication Safety Note:
Use an oral syringe for accurate measurement of liquid
medications.
, Question 3 (Easy)
Convert 2.5 g to milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Correct Answer: C. 2,500 mg
Rationale:
Step 1:
1 g = 1000 mg
Step 2:
2.5 g × (1000 mg/1 g)
Step 3:
=2,500 mg
Medication Safety Note:
Always convert to the same unit before calculating a medication
dose.
Question 4 (Easy)
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A client is prescribed acetaminophen 650 mg PO. The
medication available is 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. 2 tablets
Rationale:
Step 1: Identify the ordered dose and available dose.
650 mg ordered
325 mg/tablet available
Step 2: Set up dimensional analysis.
650 mg × (1 tablet / 325 mg)
Step 3: Solve.
650 ÷ 325 = 2 tablets
Medication Safety Note:
Always verify that scored tablets may be split if a fractional dose
is required.
,Question 2 (Easy)
A prescription reads amoxicillin 500 mg PO. The suspension
available is 250 mg per 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:
Ordered = 500 mg
Available = 250 mg/5 mL
Step 2:
500 mg × (5 mL /250 mg)
Step 3:
=10 mL
Medication Safety Note:
Use an oral syringe for accurate measurement of liquid
medications.
, Question 3 (Easy)
Convert 2.5 g to milligrams.
A. 25 mg
B. 250 mg
C. 2,500 mg
D. 25,000 mg
Correct Answer: C. 2,500 mg
Rationale:
Step 1:
1 g = 1000 mg
Step 2:
2.5 g × (1000 mg/1 g)
Step 3:
=2,500 mg
Medication Safety Note:
Always convert to the same unit before calculating a medication
dose.
Question 4 (Easy)
