ATI DOSAGE CALCULATION PN ADULT MEDICAL SURGICAL
PROCTORED ASSESSMENT 3.2 QUESTIONS AND ANSWERS
(100% CORRECT ANSWERS) ALREADY GRADED A+
1. A nurse is preparing to infuse 500 mL of 0.9% NaCl IV over 4 hr.
The nurse should set the IV pump to deliver how many mL/hr?
(Round to the nearest whole number)
ANS: 125 mL/hr ✅
Rationale: 500 mL ÷ 4 hr = 125 mL/hr.
2. A nurse is preparing to administer cefazolin 500 mg IM.
Available is a 1 g vial. The nurse reconstitutes with 2.5 mL of
sterile water to yield 300 mg/mL. How many mL should the nurse
administer? (Round to the nearest tenth)
ANS: 1.7 mL ✅
Rationale: 500 mg ÷ 300 mg/mL = 1.666 mL → 1.7 mL.
3. A nurse is preparing to administer ribavirin 400 mg PO every 12
hr. Available is ribavirin 200 mg tablets. How many tablets should
the nurse administer per dose?
ANS: 2 tablets ✅
Rationale: 400 mg ÷ 200 mg/tablet = 2 tablets.
4. A nurse is preparing to administer furosemide 40 mg IM.
Available is furosemide injection 20 mg/mL. How many mL should
the nurse administer?
ANS: 2 mL ✅
Rationale: 40 mg ÷ 20 mg/mL = 2 mL.
PROCTORED ASSESSMENT 3.2 QUESTIONS AND ANSWERS
(100% CORRECT ANSWERS) ALREADY GRADED A+
1. A nurse is preparing to infuse 500 mL of 0.9% NaCl IV over 4 hr.
The nurse should set the IV pump to deliver how many mL/hr?
(Round to the nearest whole number)
ANS: 125 mL/hr ✅
Rationale: 500 mL ÷ 4 hr = 125 mL/hr.
2. A nurse is preparing to administer cefazolin 500 mg IM.
Available is a 1 g vial. The nurse reconstitutes with 2.5 mL of
sterile water to yield 300 mg/mL. How many mL should the nurse
administer? (Round to the nearest tenth)
ANS: 1.7 mL ✅
Rationale: 500 mg ÷ 300 mg/mL = 1.666 mL → 1.7 mL.
3. A nurse is preparing to administer ribavirin 400 mg PO every 12
hr. Available is ribavirin 200 mg tablets. How many tablets should
the nurse administer per dose?
ANS: 2 tablets ✅
Rationale: 400 mg ÷ 200 mg/tablet = 2 tablets.
4. A nurse is preparing to administer furosemide 40 mg IM.
Available is furosemide injection 20 mg/mL. How many mL should
the nurse administer?
ANS: 2 mL ✅
Rationale: 40 mg ÷ 20 mg/mL = 2 mL.
