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Difficulty: HardPharmacological and Parenteral Therapies

A nurse preceptor is observing a newly licensed nurse prepare and administer parenteral medications. Which of the following actions by the newly licensed nurse indicate a safety hazard and require the preceptor to intervene? Select all that apply.

  1. Connecting a secondary infusion of intravenous ceftriaxone to a primary IV line infusing Lactated Ringer's solution.Answer
  2. Programming a continuous dobutamine infusion pump based on the client's weight documented in pounds.Answer
  3. Flushing a central venous catheter with 0.9%0.9\% sodium chloride using a standard 3 mL3 \text{ mL} syringe.Answer
  4. D
    Administering a 40 mg40 \text{ mg} dose of intravenous furosemide as a continuous push over 2 minutes2 \text{ minutes}.
  5. Stopping a continuous total parenteral nutrition (TPN) infusion to administer an intravenous push analgesic through the same port.Answer
  6. F
    Aspirating for a brisk blood return before initiating an infusion of intravenous promethazine through a central venous catheter.

Answer

The actions requiring intervention are: connecting ceftriaxone with Lactated Ringer's, calculating a weight-based drip using pounds, flushing a central line with a 3 mL3 \text{ mL} syringe, and administering an IV push medication through a dedicated TPN line.
The correct selections represent critical breaches of parenteral safety protocols. Intravenous ceftriaxone and Lactated Ringer's solution are incompatible and form a dangerous precipitate. Weight-based infusions must always be calculated using kilograms; using pounds causes massive overdoses. Flushing a central venous catheter with a 3 mL3 \text{ mL} syringe creates excessive pressure that can rupture the line. Finally, total parenteral nutrition (TPN) requires a strictly dedicated line to prevent infection and avoid complex drug incompatibilities.

Step-by-Step Solution

1
Evaluate the compatibility of ceftriaxone and Lactated Ringer's.
Identified as a severe safety hazard.
Calcium-containing solutions like Lactated Ringer's precipitate with ceftriaxone, which can be fatal.
2
Assess the methodology for programming weight-based critical care infusions.
Identified as a medication calculation hazard.
Using pounds instead of kilograms will more than double the intended dose, leading to severe toxicity.
3
Analyze the equipment chosen for flushing a central venous catheter.
Identified as a mechanical safety hazard.
A 3 mL3 \text{ mL} syringe generates too much pressure and can rupture the central line; a minimum 10 mL10 \text{ mL} syringe is required.
4
Evaluate the rate of administration for intravenous furosemide.
Identified as a safe practice.
The standard safe push rate for furosemide is 20 mg/minute20 \text{ mg/minute} to avoid ototoxicity, making 40 mg40 \text{ mg} over 2 minutes2 \text{ minutes} correct.
5
Assess the protocol for total parenteral nutrition (TPN) administration.
Identified as an incompatibility and infection hazard.
TPN lines must remain dedicated. Pushing other medications through a TPN line risks precipitation and introduces pathogens.
6
Evaluate the safety precautions for administering a vesicant medication like promethazine.
Identified as a safe practice.
Aspirating for blood return confirms central line patency, which is critical before administering vesicants to prevent severe tissue necrosis.

Key Concept

Safe parenteral medication administration requires strict adherence to IV compatibility guidelines, precise weight-based calculation using kilograms, appropriate equipment selection to prevent catheter damage, and the maintenance of dedicated lines for high-risk infusions like TPN.
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Topics

Pharmacological and Parenteral Therapies

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