Nokea
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.
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Another term for blood clot is
- A. Embolus
- B. Thrombus
- C. Plaque
- D. Hematoma
Correct Answer: B
Rationale: A thrombus is a stationary blood clot formed within a blood vessel.
Which of the following explanations of the differences between IV push and IVPB routes of administration are correct?
- A. The IV push route of administration allows direct infusion from the bag of solution at a rapid rate, which pushes the medication in quickly.
- B. The IVPB route of administration allows medications to infuse over a 1- to 2-minute interval.
- C. The IVPB route of administration requires that the medication be dissolved in a volume of fluid, ranging between 50 and 250 mL.
- D. The IV push route of administration provides for direct injection of medication into the port closest to the IV site.
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.
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.
Which of the following rates would be considered to be a 'keep the vein open' rate?
- A. 30 mL/hr
- B. 75 mL/hr
- C. 80 mL/hr
- D. 100 mL/hr
Correct Answer: A
Rationale: A 'keep vein open' rate is typically low, around 20-30 mL/hr, to maintain patency without significant fluid delivery.
Which solution is best when an individual needs only simple water replacement because of lack of fluid intake or loss of body water without loss of electrolytes, known as hypertonic dehydration?
- A. Isotonic solution
- B. Hypotonic solution
- C. Hypertonic solution
Correct Answer: B
Rationale: Hypotonic solutions provide water to rehydrate cells without adding excess electrolytes, suitable for hypertonic dehydration.