BSN HESI 215 – Dosage Calculations Exam V1 Questions
and Answers with Rationales 2026/2027 Update -
Nightingale College
Calculation conventions
Round mL to the nearest tenth unless the answer is a whole number.
Round drops/min to the nearest whole number.
For kg conversion, use 1 kg = 2.2 lb.
Follow the medication label and any institutional rounding rules when they
differ.
Basic Dosage Calculations
1. The provider orders acetaminophen 650 mg PO. Available:
325 mg tablets. How many tablets should the nurse administer?
A. 1
B. 1.5
C. 2
D. 3
Answer: C — 2 tablets
Rationale: 650 mg ÷ 325 mg/tablet = 2 tablets.
2. Order: amoxicillin 500 mg PO. Available: 250 mg capsules.
How many capsules?
A. 1
B. 2
C. 3
D. 4
,Answer: B — 2 capsules
Rationale: 500 ÷ 250 = 2 capsules.
3. Order: ibuprofen 400 mg. Available: 200 mg tablets.
A. 1
B. 2
C. 3
D. 4
Answer: B — 2 tablets
Rationale: 400 ÷ 200 = 2.
4. Order: prednisone 15 mg. Available: 5 mg tablets.
A. 2
B. 3
C. 4
D. 5
Answer: B — 3 tablets
Rationale: 15 ÷ 5 = 3.
5. Order: furosemide 40 mg PO. Available: 20 mg tablets.
A. 0.5
B. 1
C. 2
D. 4
Answer: C — 2 tablets
Rationale: 40 ÷ 20 = 2.
6. Order: levothyroxine 75 mcg. Available: 25 mcg tablets.
A. 2
,B. 3
C. 4
D. 5
Answer: B — 3 tablets
Rationale: 75 ÷ 25 = 3.
7. Order: digoxin 0.25 mg. Available: 0.125 mg tablets.
A. 1
B. 1.5
C. 2
D. 2.5
Answer: C — 2 tablets
Rationale: 0.25 ÷ 0.125 = 2.
8. Order: warfarin 7.5 mg. Available: 5 mg tablets.
A. 0.5
B. 1
C. 1.5
D. 2
Answer: C — 1.5 tablets
Rationale: 7.5 ÷ 5 = 1.5.
9. Order: metoprolol 50 mg. Available: 25 mg tablets.
A. 1
B. 2
C. 3
D. 4
, Answer: B — 2 tablets
Rationale: 50 ÷ 25 = 2.
10. Order: aspirin 81 mg. Available: 162 mg tablets scored for
splitting.
A. 0.25
B. 0.5
C. 1
D. 2
Answer: B — 0.5 tablet
Rationale: 81 ÷ 162 = 0.5 tablet.
11. Order: ondansetron 8 mg. Available: 4 mg tablets.
A. 1
B. 2
C. 3
D. 4
Answer: B — 2 tablets
Rationale: 8 ÷ 4 = 2.
12. Order: calcium carbonate 1,000 mg. Available: 500 mg
tablets.
A. 1
B. 1.5
C. 2
D. 3
Answer: C — 2 tablets
Rationale: 1,000 ÷ 500 = 2.
and Answers with Rationales 2026/2027 Update -
Nightingale College
Calculation conventions
Round mL to the nearest tenth unless the answer is a whole number.
Round drops/min to the nearest whole number.
For kg conversion, use 1 kg = 2.2 lb.
Follow the medication label and any institutional rounding rules when they
differ.
Basic Dosage Calculations
1. The provider orders acetaminophen 650 mg PO. Available:
325 mg tablets. How many tablets should the nurse administer?
A. 1
B. 1.5
C. 2
D. 3
Answer: C — 2 tablets
Rationale: 650 mg ÷ 325 mg/tablet = 2 tablets.
2. Order: amoxicillin 500 mg PO. Available: 250 mg capsules.
How many capsules?
A. 1
B. 2
C. 3
D. 4
,Answer: B — 2 capsules
Rationale: 500 ÷ 250 = 2 capsules.
3. Order: ibuprofen 400 mg. Available: 200 mg tablets.
A. 1
B. 2
C. 3
D. 4
Answer: B — 2 tablets
Rationale: 400 ÷ 200 = 2.
4. Order: prednisone 15 mg. Available: 5 mg tablets.
A. 2
B. 3
C. 4
D. 5
Answer: B — 3 tablets
Rationale: 15 ÷ 5 = 3.
5. Order: furosemide 40 mg PO. Available: 20 mg tablets.
A. 0.5
B. 1
C. 2
D. 4
Answer: C — 2 tablets
Rationale: 40 ÷ 20 = 2.
6. Order: levothyroxine 75 mcg. Available: 25 mcg tablets.
A. 2
,B. 3
C. 4
D. 5
Answer: B — 3 tablets
Rationale: 75 ÷ 25 = 3.
7. Order: digoxin 0.25 mg. Available: 0.125 mg tablets.
A. 1
B. 1.5
C. 2
D. 2.5
Answer: C — 2 tablets
Rationale: 0.25 ÷ 0.125 = 2.
8. Order: warfarin 7.5 mg. Available: 5 mg tablets.
A. 0.5
B. 1
C. 1.5
D. 2
Answer: C — 1.5 tablets
Rationale: 7.5 ÷ 5 = 1.5.
9. Order: metoprolol 50 mg. Available: 25 mg tablets.
A. 1
B. 2
C. 3
D. 4
, Answer: B — 2 tablets
Rationale: 50 ÷ 25 = 2.
10. Order: aspirin 81 mg. Available: 162 mg tablets scored for
splitting.
A. 0.25
B. 0.5
C. 1
D. 2
Answer: B — 0.5 tablet
Rationale: 81 ÷ 162 = 0.5 tablet.
11. Order: ondansetron 8 mg. Available: 4 mg tablets.
A. 1
B. 2
C. 3
D. 4
Answer: B — 2 tablets
Rationale: 8 ÷ 4 = 2.
12. Order: calcium carbonate 1,000 mg. Available: 500 mg
tablets.
A. 1
B. 1.5
C. 2
D. 3
Answer: C — 2 tablets
Rationale: 1,000 ÷ 500 = 2.
