Tablet & Oral Liquid Dosage Practice Questions

85 questions in this topic · free · worked solutions included

Desired-over-have tablet counts and oral solution volumes (D/H × Q) — the most common question type on nursing school dosage exams and employer numeracy tests.

Fast, error-free D/H × Q setups are free points — collect all of them.

Try 10 practice questions

Q1. Order: 750 mg PO. Available: tablets labeled 250 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 3 tablets

1Start with the order: 750 mg
2Divide by strength per tablet: 750 ÷ 250
3Answer: 3 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q2. Order: 100 mg PO. Available: tablets labeled 50 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 2 tablets

1Start with the order: 100 mg
2Divide by strength per tablet: 100 ÷ 50
3Answer: 2 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q3. Order: 90 mg PO. Available: tablets labeled 30 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 3 tablets

1Start with the order: 90 mg
2Divide by strength per tablet: 90 ÷ 30
3Answer: 3 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q4. Order: 1,000 mg PO. Available: tablets labeled 500 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 2 tablets

1Start with the order: 1,000 mg
2Divide by strength per tablet: 1,000 ÷ 500
3Answer: 2 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q5. Order: 75 mg PO. Available: tablets labeled 25 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 3 tablets

1Start with the order: 75 mg
2Divide by strength per tablet: 75 ÷ 25
3Answer: 3 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q6. Order: 60 mg PO. Available: tablets labeled 20 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 3 tablets

1Start with the order: 60 mg
2Divide by strength per tablet: 60 ÷ 20
3Answer: 3 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q7. Order: 150 mg PO. Available: tablets labeled 75 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 2 tablets

1Start with the order: 150 mg
2Divide by strength per tablet: 150 ÷ 75
3Answer: 2 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q8. Order: 40 mg PO. Available: tablets labeled 20 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 2 tablets

1Start with the order: 40 mg
2Divide by strength per tablet: 40 ÷ 20
3Answer: 2 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q9. Order: 500 mg PO. Available: tablets labeled 250 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 2 tablets

1Start with the order: 500 mg
2Divide by strength per tablet: 500 ÷ 250
3Answer: 2 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

Q10. Order: 0.25 mg PO. Available: tablets labeled 0.125 mg each.

How many tablets should the nurse give? (Round to 1 decimal if needed)

Show answer & worked solution

Answer: 2 tablets

1Start with the order: 0.25 mg
2Divide by strength per tablet: 0.25 ÷ 0.125
3Answer: 2 tablets
⚠ Common mistake: Flipping the fraction — have ÷ desired gives nonsense tablet counts.

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