Nokea
Which of the following is the most important concept related to IV therapy?
- A. Maintain strict asepsis.
- B. Monitor IV infusion rate.
- C. Maintain fluid balance.
- D. Educate the patient about the IV therapy.
Correct Answer: A
Rationale: Strict asepsis is critical to prevent infections, which are a major risk in IV therapy.
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Match each IV fluid with the appropriate term that accurately describes the solution's tonicity: 0.9% NS
- A. Isotonic
- B. Hypotonic
- C. Hypertonic
Correct Answer: A
Rationale: 0.9% NS is isotonic, matching plasma osmolarity, so fluid stays in the intravascular space.
How does an intermittent prn lock differ from a traditional IV site?
- A. The prn lock is used for continual infusion of IV fluids or medications.
- B. The patient with a prn lock must be stuck each time medication needs to be administered.
- C. The prn lock provides subcutaneous access rather than IV access.
- D. The prn lock allows for intermittent infusion of IV fluids or medications without requiring a continual infusion of fluids.
Correct Answer: D
Rationale: A prn lock (saline lock) allows intermittent access without continuous infusion, unlike traditional IVs that often run fluids continuously.
Match each IV fluid with the appropriate term that accurately describes the solution's tonicity: D5 NS
- A. Isotonic
- B. Hypotonic
- C. Hypertonic
Correct Answer: C
Rationale: D5 NS is hypertonic, as previously noted, due to high osmolarity from dextrose and sodium.
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.
The red blood cells that have been separated from plasma for transfusion are called
- A. Whole blood
- B. Platelets
- C. Packed red blood cells
- D. Plasma concentrate
Correct Answer: C
Rationale: Packed red blood cells are red cells separated from plasma, used for transfusions to treat anemia.