DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse must administer acetaminophen 650 mg PO. Tablets
available are 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
Rationale:
Step 1: Set up dimensional analysis.
[
650\ \text{mg} \times \frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2: Cancel mg.
[
=\frac{650}{325}=2\ \text{tablets}
]
Step 3: Administer 2 tablets.
Medication Safety Note:
Always verify that the tablet strength matches the medication
administration record before dispensing.
,Question 2 (Easy)
An order reads amoxicillin 500 mg PO. The suspension available
contains 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
Rationale:
Step 1:
[
500\ \text{mg}\times\frac{5\ \text{mL}}{250\ \text{mg}}
]
Step 2:
[
=\frac{2500}{250}=10\ \text{mL}
]
Step 3: Administer 10 mL.
, Medication Safety Note:
Shake suspensions well and use an oral dosing syringe for
accuracy.
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
Rationale:
Step 1:
[
2.5\ \text{g}\times\frac{1000\ \text{mg}}{1\ \text{g}}
]
Step 2:
[
=2500\ \text{mg}
]
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A nurse must administer acetaminophen 650 mg PO. Tablets
available are 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
Rationale:
Step 1: Set up dimensional analysis.
[
650\ \text{mg} \times \frac{1\ \text{tablet}}{325\ \text{mg}}
]
Step 2: Cancel mg.
[
=\frac{650}{325}=2\ \text{tablets}
]
Step 3: Administer 2 tablets.
Medication Safety Note:
Always verify that the tablet strength matches the medication
administration record before dispensing.
,Question 2 (Easy)
An order reads amoxicillin 500 mg PO. The suspension available
contains 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
Rationale:
Step 1:
[
500\ \text{mg}\times\frac{5\ \text{mL}}{250\ \text{mg}}
]
Step 2:
[
=\frac{2500}{250}=10\ \text{mL}
]
Step 3: Administer 10 mL.
, Medication Safety Note:
Shake suspensions well and use an oral dosing syringe for
accuracy.
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
Rationale:
Step 1:
[
2.5\ \text{g}\times\frac{1000\ \text{mg}}{1\ \text{g}}
]
Step 2:
[
=2500\ \text{mg}
]
