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Zorluk: ZorPharmacological and Parenteral Therapies

A nurse is caring for a client who is receiving continuous total parenteral nutrition (TPN) via a single-lumen peripherally inserted central catheter (PICC). The healthcare provider prescribes a scheduled dose of intravenous (IV) ceftriaxone. The drug reference guide indicates that ceftriaxone is chemically incompatible with the TPN formulation. Which of the following is the most appropriate nursing action?

  1. Initiate a new peripheral intravenous catheter to administer the prescribed antibiotic.Cevap
  2. B
    Pause the parenteral nutrition, flush the catheter with 0.9% sodium chloride, infuse the antibiotic, and flush again.
  3. C
    Attach the antibiotic tubing to the lowest Y-site port of the central line to minimize contact time between the solutions.
  4. D
    Delay the administration of the antibiotic until the current bag of parenteral nutrition is completely infused.

Cevap

The nurse must initiate a new peripheral intravenous catheter to administer the prescribed antibiotic safely.
The correct action involves establishing a new peripheral intravenous site. Total parenteral nutrition (TPN) requires a strictly dedicated IV line due to its high glucose and lipid content, which carries a substantial risk for infection. Additionally, abruptly pausing continuous TPN to administer another medication can cause sudden, severe hypoglycemia. Because ceftriaxone is chemically incompatible with TPN and can cause fatal precipitates (especially with calcium often found in TPN), and the central line must remain dedicated and uninterrupted, the nurse must establish a new peripheral IV access to safely deliver the scheduled antibiotic.

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1
Identify the chemical incompatibility between ceftriaxone and the total parenteral nutrition (TPN) solution.
Recognize that the two solutions cannot be mixed in the same IV tubing or catheter lumen without causing dangerous precipitation.
Mixing incompatible solutions, especially TPN which often contains calcium, with ceftriaxone can cause fatal crystalline precipitates.
2
Evaluate the current venous access and the physiological requirements of TPN administration.
Note that the client has only a single-lumen central line that must remain dedicated to continuous TPN.
TPN lines must remain strictly dedicated to prevent central line-associated bloodstream infections (CLABSI), and TPN cannot be abruptly paused due to the risk of severe reactive hypoglycemia.
3
Determine the safest method to administer the scheduled antibiotic without compromising the TPN therapy.
Select the insertion of a new peripheral IV catheter as the safest and most appropriate intervention.
A separate IV line ensures timely administration of the antibiotic while maintaining the dedicated TPN line and preventing drug incompatibilities.

Anahtar Kavram

Management of Intravenous Incompatibilities and Total Parenteral Nutrition (TPN) Safety
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Konular

Pharmacological and Parenteral Therapies

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