NUR 210 • PHARMACOLOGY PRACTICE SERIES
NUR 210 Medication Calculations & Drug Safety
2026–2027 • 110 Worked Calculation Questions
Tablets, liquid doses, grams-to-milligrams, IV pumps, infusion times, weight-based arithmetic, gravity drops and high-alert
infusion calculations. These values are mathematical examples only.
USE & SCOPE
Independent practice questions, not an official test, answer key, or course syllabus. NUR 210 varies by school. Dose
calculations are educational examples, not prescribing directions. Verify medication orders, current labeling, facility policies,
monitoring thresholds and patient-specific factors in actual care.
PRACTICE EXAM: QUESTIONS, ANSWERS & RATIONALES
1. Order: 125 mg PO. Available: 125 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.12 tablets
B. 0.5 tablets
C. 10 tablets
D. 1 tablets
Correct answer: D. 1 tablets
Detailed rationale: Ordered ÷ available = 125 mg ÷ 125 mg/tablet = 1 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
2. Order: 400 mg PO. Available: 200 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.5 tablets
B. 20 tablets
C. 2 tablets
D. 0.4 tablets
Correct answer: C. 2 tablets
Detailed rationale: Ordered ÷ available = 400 mg ÷ 200 mg/tablet = 2 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
3. Order: 125 mg PO. Available: 250 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.12 tablets
B. 5 tablets
C. 0.5 tablets
D. 2 tablets
Correct answer: C. 0.5 tablets
Detailed rationale: Ordered ÷ available = 125 mg ÷ 250 mg/tablet = 0.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
4. Order: 487.5 mg PO. Available: 325 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.49 tablets
B. 0.67 tablets
C. 1.5 tablets
D. 15 tablets
Correct answer: C. 1.5 tablets
Detailed rationale: Ordered ÷ available = 487.5 mg ÷ 325 mg/tablet = 1.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
NUR 210 | Original educational practice resource • 2026–2027 | Page 1
, NUR 210 • PHARMACOLOGY PRACTICE SERIES
5. Order: 800 mg PO. Available: 400 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.8 tablets
B. 2 tablets
C. 0.5 tablets
D. 20 tablets
Correct answer: B. 2 tablets
Detailed rationale: Ordered ÷ available = 800 mg ÷ 400 mg/tablet = 2 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
6. Order: 250 mg PO. Available: 500 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.25 tablets
B. 2 tablets
C. 0.5 tablets
D. 5 tablets
Correct answer: C. 0.5 tablets
Detailed rationale: Ordered ÷ available = 250 mg ÷ 500 mg/tablet = 0.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
7. Order: 150 mg PO. Available: 50 mg per tablet (tablet can be split if needed). How many tablets?
A. 30 tablets
B. 0.33 tablets
C. 0.15 tablets
D. 3 tablets
Correct answer: D. 3 tablets
Detailed rationale: Ordered ÷ available = 150 mg ÷ 50 mg/tablet = 3 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
8. Order: 150 mg PO. Available: 75 mg per tablet (tablet can be split if needed). How many tablets?
A. 2 tablets
B. 0.15 tablets
C. 20 tablets
D. 0.5 tablets
Correct answer: A. 2 tablets
Detailed rationale: Ordered ÷ available = 150 mg ÷ 75 mg/tablet = 2 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
9. Order: 150 mg PO. Available: 100 mg per tablet (tablet can be split if needed). How many tablets?
A. 1.5 tablets
B. 0.67 tablets
C. 0.15 tablets
D. 15 tablets
Correct answer: A. 1.5 tablets
Detailed rationale: Ordered ÷ available = 150 mg ÷ 100 mg/tablet = 1.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
10. Order: 150 mg PO. Available: 150 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.15 tablets
B. 1 tablets
C. 0.5 tablets
D. 10 tablets
Correct answer: B. 1 tablets
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Detailed rationale: Ordered ÷ available = 150 mg ÷ 150 mg/tablet = 1 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
11. Order: 50 mg by mouth. Suspension: 125 mg per 5 mL. What volume should be measured?
A. 10 mL
B. 1 mL
C. 0.4 mL
D. 2 mL
Correct answer: D. 2 mL
Detailed rationale: Volume = 50 mg × (5 mL ÷ 125 mg) = 2 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
12. Order: 200 mg by mouth. Suspension: 250 mg per 5 mL. What volume should be measured?
A. 4 mL
B. 0.8 mL
C. 2 mL
D. 20 mL
Correct answer: A. 4 mL
Detailed rationale: Volume = 200 mg × (5 mL ÷ 250 mg) = 4 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
13. Order: 100 mg by mouth. Suspension: 100 mg per 5 mL. What volume should be measured?
A. 1 mL
B. 5 mL
C. 2.5 mL
D. 25 mL
Correct answer: B. 5 mL
Detailed rationale: Volume = 100 mg × (5 mL ÷ 100 mg) = 5 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
14. Order: 300 mg by mouth. Suspension: 200 mg per 5 mL. What volume should be measured?
A. 7.5 mL
B. 3.75 mL
C. 1.5 mL
D. 37.5 mL
Correct answer: A. 7.5 mL
Detailed rationale: Volume = 300 mg × (5 mL ÷ 200 mg) = 7.5 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
15. Order: 1000 mg by mouth. Suspension: 500 mg per 5 mL. What volume should be measured?
A. 50 mL
B. 5 mL
C. 10 mL
D. 2 mL
Correct answer: C. 10 mL
Detailed rationale: Volume = 1000 mg × (5 mL ÷ 500 mg) = 10 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
16. Order: 150 mg by mouth. Suspension: 250 mg per 5 mL. What volume should be measured?
A. 0.6 mL
NUR 210 | Original educational practice resource • 2026–2027 | Page 3
NUR 210 Medication Calculations & Drug Safety
2026–2027 • 110 Worked Calculation Questions
Tablets, liquid doses, grams-to-milligrams, IV pumps, infusion times, weight-based arithmetic, gravity drops and high-alert
infusion calculations. These values are mathematical examples only.
USE & SCOPE
Independent practice questions, not an official test, answer key, or course syllabus. NUR 210 varies by school. Dose
calculations are educational examples, not prescribing directions. Verify medication orders, current labeling, facility policies,
monitoring thresholds and patient-specific factors in actual care.
PRACTICE EXAM: QUESTIONS, ANSWERS & RATIONALES
1. Order: 125 mg PO. Available: 125 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.12 tablets
B. 0.5 tablets
C. 10 tablets
D. 1 tablets
Correct answer: D. 1 tablets
Detailed rationale: Ordered ÷ available = 125 mg ÷ 125 mg/tablet = 1 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
2. Order: 400 mg PO. Available: 200 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.5 tablets
B. 20 tablets
C. 2 tablets
D. 0.4 tablets
Correct answer: C. 2 tablets
Detailed rationale: Ordered ÷ available = 400 mg ÷ 200 mg/tablet = 2 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
3. Order: 125 mg PO. Available: 250 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.12 tablets
B. 5 tablets
C. 0.5 tablets
D. 2 tablets
Correct answer: C. 0.5 tablets
Detailed rationale: Ordered ÷ available = 125 mg ÷ 250 mg/tablet = 0.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
4. Order: 487.5 mg PO. Available: 325 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.49 tablets
B. 0.67 tablets
C. 1.5 tablets
D. 15 tablets
Correct answer: C. 1.5 tablets
Detailed rationale: Ordered ÷ available = 487.5 mg ÷ 325 mg/tablet = 1.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
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, NUR 210 • PHARMACOLOGY PRACTICE SERIES
5. Order: 800 mg PO. Available: 400 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.8 tablets
B. 2 tablets
C. 0.5 tablets
D. 20 tablets
Correct answer: B. 2 tablets
Detailed rationale: Ordered ÷ available = 800 mg ÷ 400 mg/tablet = 2 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
6. Order: 250 mg PO. Available: 500 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.25 tablets
B. 2 tablets
C. 0.5 tablets
D. 5 tablets
Correct answer: C. 0.5 tablets
Detailed rationale: Ordered ÷ available = 250 mg ÷ 500 mg/tablet = 0.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
7. Order: 150 mg PO. Available: 50 mg per tablet (tablet can be split if needed). How many tablets?
A. 30 tablets
B. 0.33 tablets
C. 0.15 tablets
D. 3 tablets
Correct answer: D. 3 tablets
Detailed rationale: Ordered ÷ available = 150 mg ÷ 50 mg/tablet = 3 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
8. Order: 150 mg PO. Available: 75 mg per tablet (tablet can be split if needed). How many tablets?
A. 2 tablets
B. 0.15 tablets
C. 20 tablets
D. 0.5 tablets
Correct answer: A. 2 tablets
Detailed rationale: Ordered ÷ available = 150 mg ÷ 75 mg/tablet = 2 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
9. Order: 150 mg PO. Available: 100 mg per tablet (tablet can be split if needed). How many tablets?
A. 1.5 tablets
B. 0.67 tablets
C. 0.15 tablets
D. 15 tablets
Correct answer: A. 1.5 tablets
Detailed rationale: Ordered ÷ available = 150 mg ÷ 100 mg/tablet = 1.5 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
10. Order: 150 mg PO. Available: 150 mg per tablet (tablet can be split if needed). How many tablets?
A. 0.15 tablets
B. 1 tablets
C. 0.5 tablets
D. 10 tablets
Correct answer: B. 1 tablets
NUR 210 | Original educational practice resource • 2026–2027 | Page 2
, NUR 210 • PHARMACOLOGY PRACTICE SERIES
Detailed rationale: Ordered ÷ available = 150 mg ÷ 150 mg/tablet = 1 tablets.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
11. Order: 50 mg by mouth. Suspension: 125 mg per 5 mL. What volume should be measured?
A. 10 mL
B. 1 mL
C. 0.4 mL
D. 2 mL
Correct answer: D. 2 mL
Detailed rationale: Volume = 50 mg × (5 mL ÷ 125 mg) = 2 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
12. Order: 200 mg by mouth. Suspension: 250 mg per 5 mL. What volume should be measured?
A. 4 mL
B. 0.8 mL
C. 2 mL
D. 20 mL
Correct answer: A. 4 mL
Detailed rationale: Volume = 200 mg × (5 mL ÷ 250 mg) = 4 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
13. Order: 100 mg by mouth. Suspension: 100 mg per 5 mL. What volume should be measured?
A. 1 mL
B. 5 mL
C. 2.5 mL
D. 25 mL
Correct answer: B. 5 mL
Detailed rationale: Volume = 100 mg × (5 mL ÷ 100 mg) = 5 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
14. Order: 300 mg by mouth. Suspension: 200 mg per 5 mL. What volume should be measured?
A. 7.5 mL
B. 3.75 mL
C. 1.5 mL
D. 37.5 mL
Correct answer: A. 7.5 mL
Detailed rationale: Volume = 300 mg × (5 mL ÷ 200 mg) = 7.5 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
15. Order: 1000 mg by mouth. Suspension: 500 mg per 5 mL. What volume should be measured?
A. 50 mL
B. 5 mL
C. 10 mL
D. 2 mL
Correct answer: C. 10 mL
Detailed rationale: Volume = 1000 mg × (5 mL ÷ 500 mg) = 10 mL.
Why other options are incorrect: The other values result from changing units, using the wrong ratio, or performing the
incorrect arithmetic operation.
16. Order: 150 mg by mouth. Suspension: 250 mg per 5 mL. What volume should be measured?
A. 0.6 mL
NUR 210 | Original educational practice resource • 2026–2027 | Page 3
