DOSAGE CALCULATIONS MADE
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A healthcare provider prescribes 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: 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 tablets are scored before splitting. Confirm
the total dose before administration.
Question 2 (Easy)
The provider orders amoxicillin 500 mg PO. The suspension
available is 250 mg/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:
[
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 thoroughly before measuring the dose.
Question 3 (Easy)
Convert 1.5 g to milligrams.
A. 15 mg
B. 150 mg
C. 1,500 mg
D. 15,000 mg
Correct Answer: C. 1,500 mg
Rationale:
Step 1:
[
1.5\ \text{g}\times\frac{1000\ \text{mg}}{1\ \text{g}}
]
Step 2:
EASY
SOLVING PROBLEMS USING
DIMENSIONAL ANALYSIS
8TH EDITION
• AUTHOR(S)GLORIA PEARL
CRAIG
TEST BANK
,Question 1 (Easy)
A healthcare provider prescribes 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: 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 tablets are scored before splitting. Confirm
the total dose before administration.
Question 2 (Easy)
The provider orders amoxicillin 500 mg PO. The suspension
available is 250 mg/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:
[
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 thoroughly before measuring the dose.
Question 3 (Easy)
Convert 1.5 g to milligrams.
A. 15 mg
B. 150 mg
C. 1,500 mg
D. 15,000 mg
Correct Answer: C. 1,500 mg
Rationale:
Step 1:
[
1.5\ \text{g}\times\frac{1000\ \text{mg}}{1\ \text{g}}
]
Step 2:
