ATI DOSAGE CALCULATION PN ADULT
MEDICAL SURGICAL PROCTORED
ASSESSMENT 3.1 PRACTICE EXAM
QUESTIONS & VERIFIED ANSWERS
2026/2027 UPDATE
1. A nurse is preparing to administer heparin 1,200 units/hr by continuous IV infusion. The
pharmacy provides heparin 25,000 units in 250 mL of 5% dextrose in water. The nurse should
set the IV pump to deliver how many mL/hr?
A. 10 mL/hr
B. 20 mL/hr
C. 15 mL/hr
D. 12 mL/hr
Answer: D
Conceptual Explanation: To calculate the infusion rate: (1,200 units/hr / 25,000 units) *
250 mL = 12 mL/hr.
2. A nurse is preparing to administer amoxicillin 250 mg PO every 8 hours. The amount
available is amoxicillin 125 mg/5 mL. How many mL should the nurse administer per dose?
A. 5 mL
,B. 7.5 mL
C. 12.5 mL
D. 10 mL
Answer: D
Conceptual Explanation: (Desired 250 mg / Have 125 mg) * 5 mL = 10 mL.
3. A nurse is preparing to administer 0.9% sodium chloride 1,000 mL IV to infuse over 8 hours.
The nurse should set the IV pump to deliver how many mL/hr?
A. 80 mL/hr
B. 150 mL/hr
C. 100 mL/hr
D. 125 mL/hr
Answer: D
Conceptual Explanation: Total volume 1,000 mL / 8 hours = 125 mL/hr.
4. A nurse is preparing to administer cefazolin 1 g IVPB in 100 mL of 0.9% sodium chloride to
infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr?
A. 100 mL/hr
B. 150 mL/hr
C. 300 mL/hr
, D. 200 mL/hr
Answer: D
Conceptual Explanation: 100 mL / 0.5 hr = 200 mL/hr.
5. A nurse is preparing to administer methylprednisolone 4 mg/kg IV bolus to a client who
weighs 165 lb. The amount available is methylprednisolone 125 mg/2 mL. How many mL
should the nurse administer?
A. 2.4 mL
B. 3.2 mL
C. 4.8 mL
D. 5.6 mL
Answer: C
Conceptual Explanation: 165 lb / 2.2 = 75 kg. 75 kg * 4 mg/kg = 300 mg. (300 mg / 125
mg) * 2 mL = 4.8 mL.
6. A nurse is preparing to administer dopamine 5 mcg/kg/min by continuous IV infusion to a
client who weighs 176 lb. The pharmacy provides dopamine 400 mg in 250 mL of 5% dextrose
in water. The nurse should set the IV pump to deliver how many mL/hr?
A. 15 mL/hr
B. 12 mL/hr
C. 10 mL/hr
MEDICAL SURGICAL PROCTORED
ASSESSMENT 3.1 PRACTICE EXAM
QUESTIONS & VERIFIED ANSWERS
2026/2027 UPDATE
1. A nurse is preparing to administer heparin 1,200 units/hr by continuous IV infusion. The
pharmacy provides heparin 25,000 units in 250 mL of 5% dextrose in water. The nurse should
set the IV pump to deliver how many mL/hr?
A. 10 mL/hr
B. 20 mL/hr
C. 15 mL/hr
D. 12 mL/hr
Answer: D
Conceptual Explanation: To calculate the infusion rate: (1,200 units/hr / 25,000 units) *
250 mL = 12 mL/hr.
2. A nurse is preparing to administer amoxicillin 250 mg PO every 8 hours. The amount
available is amoxicillin 125 mg/5 mL. How many mL should the nurse administer per dose?
A. 5 mL
,B. 7.5 mL
C. 12.5 mL
D. 10 mL
Answer: D
Conceptual Explanation: (Desired 250 mg / Have 125 mg) * 5 mL = 10 mL.
3. A nurse is preparing to administer 0.9% sodium chloride 1,000 mL IV to infuse over 8 hours.
The nurse should set the IV pump to deliver how many mL/hr?
A. 80 mL/hr
B. 150 mL/hr
C. 100 mL/hr
D. 125 mL/hr
Answer: D
Conceptual Explanation: Total volume 1,000 mL / 8 hours = 125 mL/hr.
4. A nurse is preparing to administer cefazolin 1 g IVPB in 100 mL of 0.9% sodium chloride to
infuse over 30 min. The nurse should set the IV pump to deliver how many mL/hr?
A. 100 mL/hr
B. 150 mL/hr
C. 300 mL/hr
, D. 200 mL/hr
Answer: D
Conceptual Explanation: 100 mL / 0.5 hr = 200 mL/hr.
5. A nurse is preparing to administer methylprednisolone 4 mg/kg IV bolus to a client who
weighs 165 lb. The amount available is methylprednisolone 125 mg/2 mL. How many mL
should the nurse administer?
A. 2.4 mL
B. 3.2 mL
C. 4.8 mL
D. 5.6 mL
Answer: C
Conceptual Explanation: 165 lb / 2.2 = 75 kg. 75 kg * 4 mg/kg = 300 mg. (300 mg / 125
mg) * 2 mL = 4.8 mL.
6. A nurse is preparing to administer dopamine 5 mcg/kg/min by continuous IV infusion to a
client who weighs 176 lb. The pharmacy provides dopamine 400 mg in 250 mL of 5% dextrose
in water. The nurse should set the IV pump to deliver how many mL/hr?
A. 15 mL/hr
B. 12 mL/hr
C. 10 mL/hr
