ATI LPN
Study Guide for Fundamentals of Nursing Care: Concepts, Connections & Skills
Chapter 38 : Intravenous Therapy Questions
Question 1 of 5
The health care provider has ordered the IV to infuse at 125 mL/hr. The tubing's drop factor is 20. Calculate the gravity infusion rate.
Correct Answer: 42 gtt/min
Rationale: Formula: (125 mL ? 20 gtt/mL) ÷ 60 min = 2500 ÷ 60 = 41.67, rounded to 42 gtt/min.
Question 2 of 5
The health care provider has ordered the IV to infuse at 30 mL/hr. The tubing's drop factor is 60. Calculate the gravity infusion rate.
Correct Answer: 30 gtt/min
Rationale: Formula: (30 mL ? 60 gtt/mL) ÷ 60 min = 1800 ÷ 60 = 30 gtt/min.
Question 3 of 5
The IVPB is to infuse over 30 minutes. The PB solution bag is 50 mL. The tubing's drop factor is 12. Calculate the gravity infusion rate. Show your work.
Correct Answer: 20 gtt/min
Rationale: Formula: (50 mL ? 12 gtt/mL) ÷ 30 min = 600 ÷ 30 = 20 gtt/min.
Question 4 of 5
The IVPB is to infuse over 30 minutes. The PB solution bag is 100 mL. The tubing's drop factor is 20. Calculate the gravity infusion rate.
Correct Answer: 67 gtt/min
Rationale: Formula: (100 mL ? 20 gtt/mL) ÷ 30 min = 2000 ÷ 30 = 66.67, rounded to 67 gtt/min.
Question 5 of 5
The IVPB is to infuse over 20 minutes. The PB solution bag is 100 mL. The tubing's drop factor is 20. Calculate the gravity infusion rate.
Correct Answer: 100 gtt/min
Rationale: Formula: (100 mL ? 20 gtt/mL) ÷ 20 min = 2000 ÷ 20 = 100 gtt/min.