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Difficulty: MediumPharmacological and Parenteral Therapies

A client admitted with rapid atrial fibrillation is receiving a continuous intravenous (IV) infusion of diltiazem through a single-lumen peripheral catheter. The healthcare provider prescribes a scheduled dose of IV pantoprazole for stress ulcer prophylaxis. The nurse checks a drug reference guide and notes that pantoprazole is chemically incompatible with diltiazem. Which action is the most appropriate for the nurse to take?

  1. A
    Stop the diltiazem infusion temporarily, flush the line with 0.9% sodium chloride, infuse the pantoprazole, and resume the diltiazem.
  2. Initiate a second peripheral intravenous catheter to administer the pantoprazole.Answer
  3. C
    Connect the pantoprazole to the distal Y-site closest to the insertion site while the diltiazem is infusing.
  4. D
    Administer the pantoprazole as a rapid intravenous push through the diltiazem line to minimize contact time between the drugs.

Answer

The most appropriate action is to initiate a second peripheral intravenous catheter to administer the pantoprazole.
Diltiazem is a critical, continuous cardiac medication used to control heart rate. It should not be paused for the administration of a routine or secondary medication. Because it is chemically incompatible with pantoprazole, the two cannot be infused through the same line simultaneously. Therefore, the safest and most appropriate nursing action is to establish a second peripheral IV line to administer the pantoprazole, ensuring both therapies are delivered safely and without interruption.

Step-by-Step Solution

1
Identify the prescribed medications and verify their compatibility.
Diltiazem and pantoprazole are chemically incompatible.
Mixing incompatible medications in the same IV line can lead to precipitate formation, posing a severe embolic risk to the client.
2
Evaluate the clinical purpose and nature of the primary continuous infusion.
Diltiazem is a critical cardiac medication used for rate control in rapid atrial fibrillation.
Interrupting a continuous vasoactive or antiarrhythmic drip can rapidly lead to hemodynamic instability or a return of the rapid ventricular response.
3
Determine the safest administration route that satisfies both medication requirements.
A second, dedicated IV line must be established.
This ensures the critical continuous cardiac medication is not paused, while safely allowing the administration of the incompatible secondary medication.

Key Concept

Management of Intravenous Incompatibilities and Continuous Cardiac Infusions
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Topics

Pharmacological and Parenteral Therapies

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