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ATI Dosage Calculation PN Adult
Medical Surgical Proctored 2026
Prepare for the ATI Dosage Calculation PN Adult Medical
Surgical Proctored Assessment with focused practice on
medication calculations, IV flow rates, weight-based
dosing, reconstitution, oral and injectable medications,
unit conversions, and safe medication administration.
Ideal for practical nursing students reviewing dosage
calculation skills and preparing for the PN Adult Medical
Surgical proctored assessment.
1. The healthcare provider orders 500 mg of amoxicillin PO. The
pharmacy supplies 250 mg capsules. How many capsules should the
nurse administer?
A. 0.5 capsule
B. 1 capsule
C. 2 capsules
D. 3 capsules
Answer: C. 2 capsules
Rationale: 500 mg ÷ 250 mg × 1 capsule = 2 capsules.
2. The order reads 0.5 g of a medication PO. The available tablets
are 250 mg each. How many tablets should the nurse give?
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A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
Answer: C. 2 tablets
Rationale: Convert 0.5 g to 500 mg. 500 mg ÷ 250 mg × 1 tablet = 2
tablets.
3. A client is prescribed 1,000 mg of metformin PO. The pharmacy
provides 500 mg tablets. How many tablets should the nurse
administer?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 3 tablets
Answer: C. 2 tablets
Rationale: 1,000 mg ÷ 500 mg × 1 tablet = 2 tablets.
4. The provider orders 750 mg of a medication. The available
capsules are 250 mg each. How many capsules should the nurse
give?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Answer: C. 3 capsules
Rationale: 750 mg ÷ 250 mg × 1 capsule = 3 capsules.
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5. The order is for 125 mg of phenytoin suspension PO. The
available concentration is 25 mg/5 mL. How many mL should the
nurse administer?
A. 5 mL
B. 15 mL
C. 25 mL
D. 50 mL
Answer: C. 25 mL
Rationale: 125 mg ÷ 25 mg × 5 mL = 25 mL.
6. A client is prescribed 300 mg of acetaminophen liquid PO. The
available concentration is 100 mg/5 mL. How many mL should the
nurse give?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: C. 15 mL
Rationale: 300 mg ÷ 100 mg × 5 mL = 15 mL.
7. The provider orders 400 mg of ibuprofen suspension PO. The
available concentration is 100 mg/5 mL. How many mL should the
nurse administer?
A. 10 mL
B. 15 mL
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C. 20 mL
D. 25 mL
Answer: C. 20 mL
Rationale: 400 mg ÷ 100 mg × 5 mL = 20 mL.
8. A client is ordered 250 mg of cephalexin suspension PO. The
available concentration is 125 mg/5 mL. How many mL should the
nurse administer?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: B. 10 mL
Rationale: 250 mg ÷ 125 mg × 5 mL = 10 mL.
9. The order reads 60 mg of a medication PO. The available
concentration is 20 mg/5 mL. How many mL should the nurse give?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: C. 15 mL
Rationale: 60 mg ÷ 20 mg × 5 mL = 15 mL.
ATI Dosage Calculation PN Adult
Medical Surgical Proctored 2026
Prepare for the ATI Dosage Calculation PN Adult Medical
Surgical Proctored Assessment with focused practice on
medication calculations, IV flow rates, weight-based
dosing, reconstitution, oral and injectable medications,
unit conversions, and safe medication administration.
Ideal for practical nursing students reviewing dosage
calculation skills and preparing for the PN Adult Medical
Surgical proctored assessment.
1. The healthcare provider orders 500 mg of amoxicillin PO. The
pharmacy supplies 250 mg capsules. How many capsules should the
nurse administer?
A. 0.5 capsule
B. 1 capsule
C. 2 capsules
D. 3 capsules
Answer: C. 2 capsules
Rationale: 500 mg ÷ 250 mg × 1 capsule = 2 capsules.
2. The order reads 0.5 g of a medication PO. The available tablets
are 250 mg each. How many tablets should the nurse give?
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A. 1 tablet
B. 1.5 tablets
C. 2 tablets
D. 2.5 tablets
Answer: C. 2 tablets
Rationale: Convert 0.5 g to 500 mg. 500 mg ÷ 250 mg × 1 tablet = 2
tablets.
3. A client is prescribed 1,000 mg of metformin PO. The pharmacy
provides 500 mg tablets. How many tablets should the nurse
administer?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 3 tablets
Answer: C. 2 tablets
Rationale: 1,000 mg ÷ 500 mg × 1 tablet = 2 tablets.
4. The provider orders 750 mg of a medication. The available
capsules are 250 mg each. How many capsules should the nurse
give?
A. 1 capsule
B. 2 capsules
C. 3 capsules
D. 4 capsules
Answer: C. 3 capsules
Rationale: 750 mg ÷ 250 mg × 1 capsule = 3 capsules.
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5. The order is for 125 mg of phenytoin suspension PO. The
available concentration is 25 mg/5 mL. How many mL should the
nurse administer?
A. 5 mL
B. 15 mL
C. 25 mL
D. 50 mL
Answer: C. 25 mL
Rationale: 125 mg ÷ 25 mg × 5 mL = 25 mL.
6. A client is prescribed 300 mg of acetaminophen liquid PO. The
available concentration is 100 mg/5 mL. How many mL should the
nurse give?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: C. 15 mL
Rationale: 300 mg ÷ 100 mg × 5 mL = 15 mL.
7. The provider orders 400 mg of ibuprofen suspension PO. The
available concentration is 100 mg/5 mL. How many mL should the
nurse administer?
A. 10 mL
B. 15 mL
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C. 20 mL
D. 25 mL
Answer: C. 20 mL
Rationale: 400 mg ÷ 100 mg × 5 mL = 20 mL.
8. A client is ordered 250 mg of cephalexin suspension PO. The
available concentration is 125 mg/5 mL. How many mL should the
nurse administer?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: B. 10 mL
Rationale: 250 mg ÷ 125 mg × 5 mL = 10 mL.
9. The order reads 60 mg of a medication PO. The available
concentration is 20 mg/5 mL. How many mL should the nurse give?
A. 5 mL
B. 10 mL
C. 15 mL
D. 20 mL
Answer: C. 15 mL
Rationale: 60 mg ÷ 20 mg × 5 mL = 15 mL.
