ATI IV Flow Rate
Calculations, complete
with a detailed title,
correct answers, and
comprehensive rationales.
well written one year
2025 /2026 updated
graded A+
,Exam Title: Advanced Clinical
Pharmacokinetics and Intravenous Infusion
Dynamics: A Comprehensive Examination of
Flow Rate Calculation, Titration, and Complex
Clinical Scenarios for the Critical Care and
Medical-Surgical Nurse
Exam Instructions:
Time Allotment: 180 Minutes
Total Questions: 150
Format: Multiple Choice (Select the single best answer).
Requirements: A standard calculator is permitted. A
conversion chart is provided. All questions are to be
answered based on standard nursing practice and ATI
testing guidelines.
1. A patient is prescribed 1000 mL of 0.9% Normal Saline
to infuse over 8 hours. The IV tubing has a drop factor of
15 gtt/mL. What is the flow rate in gtt/min?
A. 31 gtt/min
B. 125 gtt/min
C. 21 gtt/min
,D. 42 gtt/min
- detailed answer 100% correct :-A
Rationale: Formula: Total Volume (mL) / Total Time (min) x
Drop Factor = gtt/min.
1000 mL / 480 min = 2.083 mL/min. 2.083 mL/min x 15
gtt/mL = 31.25 gtt/min. Round to the nearest whole number:
31 gtt/min.
2. A patient is ordered to receive 2 L of Lactated Ringer's
over 24 hours. The drop factor is 10 gtt/mL. Calculate the
flow rate in gtt/min.
A. 14 gtt/min
B. 28 gtt/min
C. 21 gtt/min
D. 7 gtt/min
- detailed answer 100% correct :-A
Rationale: 2 L = 2000 mL. 24 hours = 1440 minutes.
(2000 mL / 1440 min) x 10 gtt/mL = 13.88 gtt/min. Round to
14 gtt/min.
3. The provider orders 500 mg of a medication in 100 mL
of D5W to infuse over 45 minutes. The tubing delivers 20
gtt/mL. How many drops per minute should the nurse
set the IV to deliver? A. 44 gtt/min
B. 22 gtt/min
, C. 66 gtt/min
D. 33 gtt/min
- detailed answer 100% correct :-A
Rationale: (100 mL / 45 min) x 20 gtt/mL = 44.44 gtt/min.
Round to 44 gtt/min. Note: The 500 mg of medication is an
extra data point that does not affect the flow rate calculation.
4. A patient is receiving an IV at 125 mL/hr. The IV tubing
has a drop factor of 60 gtt/mL. What is the drip rate in
gtt/min?
A. 208 gtt/min
B. 125 gtt/min
C. 2 gtt/min
D. 12.5 gtt/min
- detailed answer 100% correct :-B
Rationale: Since the drop factor is 60 gtt/mL, and the rate is
125 mL/hr, the calculation is: (125 mL / 60 min) x 60 gtt/mL =
125 gtt/min. The gtt/mL and time in minutes cancel out,
resulting in the same number.
5. The nurse needs to infuse 250 mL of packed red blood
cells over 2 hours. The blood administration set has a
drop factor of 10 gtt/mL. The nurse should set the pump
to deliver how many gtt/min? (Round to the nearest
whole number).
Calculations, complete
with a detailed title,
correct answers, and
comprehensive rationales.
well written one year
2025 /2026 updated
graded A+
,Exam Title: Advanced Clinical
Pharmacokinetics and Intravenous Infusion
Dynamics: A Comprehensive Examination of
Flow Rate Calculation, Titration, and Complex
Clinical Scenarios for the Critical Care and
Medical-Surgical Nurse
Exam Instructions:
Time Allotment: 180 Minutes
Total Questions: 150
Format: Multiple Choice (Select the single best answer).
Requirements: A standard calculator is permitted. A
conversion chart is provided. All questions are to be
answered based on standard nursing practice and ATI
testing guidelines.
1. A patient is prescribed 1000 mL of 0.9% Normal Saline
to infuse over 8 hours. The IV tubing has a drop factor of
15 gtt/mL. What is the flow rate in gtt/min?
A. 31 gtt/min
B. 125 gtt/min
C. 21 gtt/min
,D. 42 gtt/min
- detailed answer 100% correct :-A
Rationale: Formula: Total Volume (mL) / Total Time (min) x
Drop Factor = gtt/min.
1000 mL / 480 min = 2.083 mL/min. 2.083 mL/min x 15
gtt/mL = 31.25 gtt/min. Round to the nearest whole number:
31 gtt/min.
2. A patient is ordered to receive 2 L of Lactated Ringer's
over 24 hours. The drop factor is 10 gtt/mL. Calculate the
flow rate in gtt/min.
A. 14 gtt/min
B. 28 gtt/min
C. 21 gtt/min
D. 7 gtt/min
- detailed answer 100% correct :-A
Rationale: 2 L = 2000 mL. 24 hours = 1440 minutes.
(2000 mL / 1440 min) x 10 gtt/mL = 13.88 gtt/min. Round to
14 gtt/min.
3. The provider orders 500 mg of a medication in 100 mL
of D5W to infuse over 45 minutes. The tubing delivers 20
gtt/mL. How many drops per minute should the nurse
set the IV to deliver? A. 44 gtt/min
B. 22 gtt/min
, C. 66 gtt/min
D. 33 gtt/min
- detailed answer 100% correct :-A
Rationale: (100 mL / 45 min) x 20 gtt/mL = 44.44 gtt/min.
Round to 44 gtt/min. Note: The 500 mg of medication is an
extra data point that does not affect the flow rate calculation.
4. A patient is receiving an IV at 125 mL/hr. The IV tubing
has a drop factor of 60 gtt/mL. What is the drip rate in
gtt/min?
A. 208 gtt/min
B. 125 gtt/min
C. 2 gtt/min
D. 12.5 gtt/min
- detailed answer 100% correct :-B
Rationale: Since the drop factor is 60 gtt/mL, and the rate is
125 mL/hr, the calculation is: (125 mL / 60 min) x 60 gtt/mL =
125 gtt/min. The gtt/mL and time in minutes cancel out,
resulting in the same number.
5. The nurse needs to infuse 250 mL of packed red blood
cells over 2 hours. The blood administration set has a
drop factor of 10 gtt/mL. The nurse should set the pump
to deliver how many gtt/min? (Round to the nearest
whole number).
