ATI LPN
Study Guide for Fundamentals of Nursing Care: Concepts, Connections & Skills
Chapter 38 : Intravenous Therapy Questions
Question 1 of 5
How does an intermittent prn lock differ from a traditional IV site?
Correct Answer: D
Rationale: A prn lock (saline lock) allows intermittent access without continuous infusion, unlike traditional IVs that often run fluids continuously.
Question 2 of 5
Which of the following explanations of the differences between IV push and IVPB routes of administration are correct?
Correct Answer: C,D
Rationale: IVPB involves medication diluted in 50-250 mL, infused over a longer period, while IV push is a direct, rapid injection into the IV port.
Question 3 of 5
Which of the following is the most important concept related to IV therapy?
Correct Answer: A
Rationale: Strict asepsis is critical to prevent infections, which are a major risk in IV therapy.
Question 4 of 5
Match each IV fluid with the appropriate term that accurately describes the solution's tonicity: 0.45% NS
Correct Answer: B
Rationale: 0.45% NS is hypotonic, with lower osmolarity than plasma, causing fluid to enter cells.
Question 5 of 5
Match each IV fluid with the appropriate term that accurately describes the solution's tonicity: D5\%NS
Correct Answer: C
Rationale: D5%NS is hypertonic due to added dextrose, increasing osmolarity above plasma.