ATI Dosage Calculation RN Fundamentals Proctored Assessment
3.2: 150 Practice Questions with Multiple-Choice Answers, Correct
Responses, and Step-by-Step Nursing Explanations for 2025/2026
Exam Success – Graded A+ Content.
Questions 1–150 (V2)
1. A nurse is preparing to administer digoxin 0.25
mg PO. Available is digoxin 0.125 mg/tablet. How
many tablets should the nurse administer?
A) 1 tablet
B) 1.5 tablets
C) 2 tablets
D) 2.5 tablets
Correct Answer: C) 2 tablets
Explanation: 0.25 mg / 0.125 mg per tablet = 2 tablets.
2. A nurse is to give furosemide 20 mg IV push.
Available is furosemide 10 mg/mL. How many mL?
,A) 1 mL
B) 2 mL
C) 3 mL
D) 4 mL
Correct Answer: B) 2 mL
Explanation: 20 mg / 10 mg per mL = 2 mL.
3. A client weighs 180 lb. How many kg? (Round to
nearest tenth)
A) 81.6 kg
B) 81.8 kg
C) 82.0 kg
D) 82.5 kg
Correct Answer: B) 81.8 kg
Explanation: 180 lb ÷ 2.2 = 81.818 → 81.8 kg.
4. Order: metoprolol 50 mg PO. Available: 25
mg/tablet. How many tablets?
A) 1 tablet
B) 1.5 tablets
C) 2 tablets
D) 2.5 tablets
,Correct Answer: C) 2 tablets
Explanation: 50 mg / 25 mg = 2 tablets.
5. Give ceftriaxone 500 mg IM. Reconstitute to 250
mg/mL. How many mL?
A) 1 mL
B) 1.5 mL
C) 2 mL
D) 2.5 mL
Correct Answer: C) 2 mL
Explanation: 500 mg / 250 mg/mL = 2 mL.
6. Morphine 2 mg IV ordered. On hand: morphine
4 mg/mL. How many mL?
A) 0.25 mL
B) 0.5 mL
C) 0.75 mL
D) 1 mL
Correct Answer: B) 0.5 mL
Explanation: 2 mg / 4 mg × 1 mL = 0.5 mL.
, 7. Heparin 8,000 units subcutaneously ordered.
Available: 5,000 units/mL. How many mL?
A) 1.2 mL
B) 1.4 mL
C) 1.6 mL
D) 1.8 mL
Correct Answer: C) 1.6 mL
Explanation: 8,,000 = 1.6 mL.
8. Patient weighs 66 kg. Order: 0.5 mg/kg IV. How
many mg?
A) 30 mg
B) 33 mg
C) 35 mg
D) 40 mg
Correct Answer: B) 33 mg
Explanation: 66 kg × 0.5 mg/kg = 33 mg.
9. Ordered: amoxicillin 875 mg PO. Available: 250
mg/5 mL suspension. How many mL?
3.2: 150 Practice Questions with Multiple-Choice Answers, Correct
Responses, and Step-by-Step Nursing Explanations for 2025/2026
Exam Success – Graded A+ Content.
Questions 1–150 (V2)
1. A nurse is preparing to administer digoxin 0.25
mg PO. Available is digoxin 0.125 mg/tablet. How
many tablets should the nurse administer?
A) 1 tablet
B) 1.5 tablets
C) 2 tablets
D) 2.5 tablets
Correct Answer: C) 2 tablets
Explanation: 0.25 mg / 0.125 mg per tablet = 2 tablets.
2. A nurse is to give furosemide 20 mg IV push.
Available is furosemide 10 mg/mL. How many mL?
,A) 1 mL
B) 2 mL
C) 3 mL
D) 4 mL
Correct Answer: B) 2 mL
Explanation: 20 mg / 10 mg per mL = 2 mL.
3. A client weighs 180 lb. How many kg? (Round to
nearest tenth)
A) 81.6 kg
B) 81.8 kg
C) 82.0 kg
D) 82.5 kg
Correct Answer: B) 81.8 kg
Explanation: 180 lb ÷ 2.2 = 81.818 → 81.8 kg.
4. Order: metoprolol 50 mg PO. Available: 25
mg/tablet. How many tablets?
A) 1 tablet
B) 1.5 tablets
C) 2 tablets
D) 2.5 tablets
,Correct Answer: C) 2 tablets
Explanation: 50 mg / 25 mg = 2 tablets.
5. Give ceftriaxone 500 mg IM. Reconstitute to 250
mg/mL. How many mL?
A) 1 mL
B) 1.5 mL
C) 2 mL
D) 2.5 mL
Correct Answer: C) 2 mL
Explanation: 500 mg / 250 mg/mL = 2 mL.
6. Morphine 2 mg IV ordered. On hand: morphine
4 mg/mL. How many mL?
A) 0.25 mL
B) 0.5 mL
C) 0.75 mL
D) 1 mL
Correct Answer: B) 0.5 mL
Explanation: 2 mg / 4 mg × 1 mL = 0.5 mL.
, 7. Heparin 8,000 units subcutaneously ordered.
Available: 5,000 units/mL. How many mL?
A) 1.2 mL
B) 1.4 mL
C) 1.6 mL
D) 1.8 mL
Correct Answer: C) 1.6 mL
Explanation: 8,,000 = 1.6 mL.
8. Patient weighs 66 kg. Order: 0.5 mg/kg IV. How
many mg?
A) 30 mg
B) 33 mg
C) 35 mg
D) 40 mg
Correct Answer: B) 33 mg
Explanation: 66 kg × 0.5 mg/kg = 33 mg.
9. Ordered: amoxicillin 875 mg PO. Available: 250
mg/5 mL suspension. How many mL?
