ATI RN DOSAGE CALCULATION EXAM 100
QUESTIONS 2026-2027|ORIGINAL QUESTIONS
& ANSWERS |DETAILED RATIONALES |HINTED
COMPLETE EXAM PREP GRADED A+*INSTANT
DOWNLOAD PDF*
1. The nurse is preparing to administer acetaminophen 650 mg PO.
Available: 325 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: 650 mg ÷ 325 mg/tablet = 2 tablets.
2. A prescription reads amoxicillin 500 mg PO. Available: 250 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: (500 mg ÷ 250 mg) × 5 mL = 10 mL.
3. The nurse needs to administer furosemide 40 mg IV. Available: 10
mg/mL. How many mL should be administered?
A. 2 mL
B. 4 mL
,C. 5 mL
D. 10 mL
Answer: B. 4 mL
Rationale: 40 mg ÷ 10 mg/mL = 4 mL.
4. A patient is prescribed 0.25 mg of digoxin PO. Available: 0.125 mg
tablets. How many tablets should the nurse give?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 4 tablets
Answer: C. 2 tablets
Rationale: 0.25 mg ÷ 0.125 mg/tablet = 2 tablets.
5. Heparin 5,000 units subcutaneously is prescribed. Available: 10,000
units/mL. How many mL should the nurse administer?
A. 0.25 mL
B. 0.5 mL
C. 1 mL
D. 2 mL
Answer: B. 0.5 mL
Rationale: 5,000 units ÷ 10,000 units/mL = 0.5 mL.
6. A prescription reads ibuprofen 600 mg PO. Available: 200 mg tablets.
How many tablets are required?
A. 2
B. 3
C. 4
D. 6
Answer: B. 3 tablets
Rationale: 600 mg ÷ 200 mg/tablet = 3 tablets.
, 7. The nurse must administer cefazolin 750 mg IV. After reconstitution,
the concentration is 250 mg/mL. How many mL are required?
A. 2 mL
B. 3 mL
C. 4 mL
D. 5 mL
Answer: B. 3 mL
Rationale: 750 mg ÷ 250 mg/mL = 3 mL.
8. A patient weighs 154 lb. What is the patient's weight in kilograms?
A. 60 kg
B. 65 kg
C. 70 kg
D. 75 kg
Answer: C. 70 kg
Rationale: 154 lb ÷ 2.2 lb/kg = 70 kg.
9. A medication is prescribed at 5 mg/kg/day for a child weighing 20 kg.
What is the total daily dose?
A. 25 mg
B. 50 mg
C. 100 mg
D. 200 mg
Answer: C. 100 mg/day
Rationale: 5 mg/kg × 20 kg = 100 mg/day.
10. The prescription is 500 mg/day divided into 2 equal doses. How
much should be given per dose?
A. 100 mg
B. 200 mg
QUESTIONS 2026-2027|ORIGINAL QUESTIONS
& ANSWERS |DETAILED RATIONALES |HINTED
COMPLETE EXAM PREP GRADED A+*INSTANT
DOWNLOAD PDF*
1. The nurse is preparing to administer acetaminophen 650 mg PO.
Available: 325 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: 650 mg ÷ 325 mg/tablet = 2 tablets.
2. A prescription reads amoxicillin 500 mg PO. Available: 250 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: (500 mg ÷ 250 mg) × 5 mL = 10 mL.
3. The nurse needs to administer furosemide 40 mg IV. Available: 10
mg/mL. How many mL should be administered?
A. 2 mL
B. 4 mL
,C. 5 mL
D. 10 mL
Answer: B. 4 mL
Rationale: 40 mg ÷ 10 mg/mL = 4 mL.
4. A patient is prescribed 0.25 mg of digoxin PO. Available: 0.125 mg
tablets. How many tablets should the nurse give?
A. 0.5 tablet
B. 1 tablet
C. 2 tablets
D. 4 tablets
Answer: C. 2 tablets
Rationale: 0.25 mg ÷ 0.125 mg/tablet = 2 tablets.
5. Heparin 5,000 units subcutaneously is prescribed. Available: 10,000
units/mL. How many mL should the nurse administer?
A. 0.25 mL
B. 0.5 mL
C. 1 mL
D. 2 mL
Answer: B. 0.5 mL
Rationale: 5,000 units ÷ 10,000 units/mL = 0.5 mL.
6. A prescription reads ibuprofen 600 mg PO. Available: 200 mg tablets.
How many tablets are required?
A. 2
B. 3
C. 4
D. 6
Answer: B. 3 tablets
Rationale: 600 mg ÷ 200 mg/tablet = 3 tablets.
, 7. The nurse must administer cefazolin 750 mg IV. After reconstitution,
the concentration is 250 mg/mL. How many mL are required?
A. 2 mL
B. 3 mL
C. 4 mL
D. 5 mL
Answer: B. 3 mL
Rationale: 750 mg ÷ 250 mg/mL = 3 mL.
8. A patient weighs 154 lb. What is the patient's weight in kilograms?
A. 60 kg
B. 65 kg
C. 70 kg
D. 75 kg
Answer: C. 70 kg
Rationale: 154 lb ÷ 2.2 lb/kg = 70 kg.
9. A medication is prescribed at 5 mg/kg/day for a child weighing 20 kg.
What is the total daily dose?
A. 25 mg
B. 50 mg
C. 100 mg
D. 200 mg
Answer: C. 100 mg/day
Rationale: 5 mg/kg × 20 kg = 100 mg/day.
10. The prescription is 500 mg/day divided into 2 equal doses. How
much should be given per dose?
A. 100 mg
B. 200 mg
