ATI DOSAGE CALCULATION PN ADULT
MEDICAL SURGICAL PROCTORED
ASSESSMENT 3.2 QUESTIONS AND
ANSWERS
1. A nurse is preparing to administer 0.9% sodium chloride 1,000 mL IV to infuse over 8 hr.
The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole
number)
A. 100 mL/hr
B. 80 mL/hr
C. 150 mL/hr
D. 125 mL/hr
Answer: D
Conceptual Explanation: To calculate mL/hr: Total Volume (1,000 mL) divided by Time
(8 hr) = 125 mL/hr.
,2. A nurse is preparing to administer heparin 5,000 units subcutaneously every 12 hr. The
amount available is heparin injection 10,000 units/mL. How many mL should the nurse
administer per dose?
A. 0.25 mL
B. 2 mL
C. 1 mL
D. 0.5 mL
Answer: D
Conceptual Explanation: Dose ordered (5,000 units) / Dose available (10,000 units) * 1
mL = 0.5 mL.
3. A nurse is preparing to administer cefazolin 1 g IM. The nurse reconstitutes a 1 g vial of
cefazolin with 2.5 mL of sterile water to yield a final concentration of 330 mg/mL. How many
mL should the nurse administer? (Round to the nearest tenth)
A. 0.3 mL
B. 2.5 mL
C. 3.3 mL
D. 3.0 mL
Answer: D
, Conceptual Explanation: Dose ordered (1,000 mg) / Concentration (330 mg/mL) = 3.03…
rounded to the nearest tenth is 3.0 mL.
4. A nurse is preparing to administer 500 mL of D5W to infuse over 4 hr. The drop factor on
the manual IV tubing is 15 gtt/mL. The nurse should set the IV flow rate to deliver how many
gtt/min? (Round to the nearest whole number)
A. 42 gtt/min
B. 25 gtt/min
C. 31 gtt/min
D. 15 gtt/min
Answer: C
Conceptual Explanation: (Volume 500 mL / Time 240 min) * Drop factor 15 = 31.25,
rounded to 31 gtt/min.
5. A nurse is preparing to administer digoxin 0.25 mg PO daily. The amount available is
digoxin 0.125 mg tablets. How many tablets should the nurse administer?
A. 0.5 tablet
B. 1 tablet
C. 1.5 tablets
D. 2 tablets
Answer: D
MEDICAL SURGICAL PROCTORED
ASSESSMENT 3.2 QUESTIONS AND
ANSWERS
1. A nurse is preparing to administer 0.9% sodium chloride 1,000 mL IV to infuse over 8 hr.
The nurse should set the IV pump to deliver how many mL/hr? (Round to the nearest whole
number)
A. 100 mL/hr
B. 80 mL/hr
C. 150 mL/hr
D. 125 mL/hr
Answer: D
Conceptual Explanation: To calculate mL/hr: Total Volume (1,000 mL) divided by Time
(8 hr) = 125 mL/hr.
,2. A nurse is preparing to administer heparin 5,000 units subcutaneously every 12 hr. The
amount available is heparin injection 10,000 units/mL. How many mL should the nurse
administer per dose?
A. 0.25 mL
B. 2 mL
C. 1 mL
D. 0.5 mL
Answer: D
Conceptual Explanation: Dose ordered (5,000 units) / Dose available (10,000 units) * 1
mL = 0.5 mL.
3. A nurse is preparing to administer cefazolin 1 g IM. The nurse reconstitutes a 1 g vial of
cefazolin with 2.5 mL of sterile water to yield a final concentration of 330 mg/mL. How many
mL should the nurse administer? (Round to the nearest tenth)
A. 0.3 mL
B. 2.5 mL
C. 3.3 mL
D. 3.0 mL
Answer: D
, Conceptual Explanation: Dose ordered (1,000 mg) / Concentration (330 mg/mL) = 3.03…
rounded to the nearest tenth is 3.0 mL.
4. A nurse is preparing to administer 500 mL of D5W to infuse over 4 hr. The drop factor on
the manual IV tubing is 15 gtt/mL. The nurse should set the IV flow rate to deliver how many
gtt/min? (Round to the nearest whole number)
A. 42 gtt/min
B. 25 gtt/min
C. 31 gtt/min
D. 15 gtt/min
Answer: C
Conceptual Explanation: (Volume 500 mL / Time 240 min) * Drop factor 15 = 31.25,
rounded to 31 gtt/min.
5. A nurse is preparing to administer digoxin 0.25 mg PO daily. The amount available is
digoxin 0.125 mg tablets. How many tablets should the nurse administer?
A. 0.5 tablet
B. 1 tablet
C. 1.5 tablets
D. 2 tablets
Answer: D
