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Zorluk: OrtaPharmacological and Parenteral Therapies

An adult client is receiving care in the medical-surgical unit for a pulmonary embolism and a newly diagnosed lower respiratory tract infection. The client has a continuous intravenous (IV) infusion of heparin running through a dedicated peripheral IV catheter. The healthcare provider urgently prescribes a dose of IV levofloxacin. Upon reviewing the hospital's parenteral compatibility database, the nurse determines that heparin and levofloxacin are physically incompatible. Which of the following is the most appropriate nursing action?

  1. Insert a second peripheral intravenous catheter to administer the levofloxacin.Cevap
  2. B
    Connect the levofloxacin to the lowest Y-site port on the primary heparin tubing.
  3. C
    Temporarily stop the heparin infusion, clear the IV line with normal saline, run the levofloxacin, and then resume the heparin.
  4. D
    Withhold the levofloxacin until the heparin therapy is complete and the infusion is discontinued.

Cevap

The most appropriate action is to insert a second peripheral intravenous catheter to administer the levofloxacin.
Establishing a second peripheral intravenous access is the correct clinical action. Heparin has a short half-life and is infused continuously to maintain therapeutic anticoagulation to prevent the pulmonary embolism from worsening. Levofloxacin is an IV piggyback that typically takes 60 to 90 minutes to administer. Because the drugs are incompatible, they cannot share a line. Pausing the heparin for over an hour would cause the client's coagulation factors to return to baseline, severely increasing the risk of clot propagation. Delaying the antibiotic is also inappropriate due to the acute respiratory infection. Therefore, a new IV line is required to deliver both treatments safely.

Adım Adım Çözüm

1
Analyze the client's current therapies and the new prescription.
The client requires both a continuous heparin infusion for a pulmonary embolism and an urgent antibiotic (levofloxacin) for a respiratory infection.
Identifying all required treatments is the first step in care coordination and safety planning.
2
Evaluate the medication administration constraints and pharmacology.
The medications are physically incompatible, meaning they cannot mix in the same IV tubing. Additionally, heparin has a very short half-life and must remain continuous to maintain therapeutic anticoagulation.
Understanding physical compatibility and pharmacokinetics prevents adverse events and guides safe administration practices.
3
Determine the safest administrative intervention.
Because they cannot be mixed and neither can be safely delayed or paused, establishing a new, separate IV access point is the only clinical option.
Providing a dedicated line ensures both critical medications infuse safely and continuously.

Anahtar Kavram

When a client requires an extended infusion of a medication that is physically incompatible with an ongoing critical continuous infusion (such as an anticoagulant or vasopressor), the nurse must establish a second intravenous access site rather than mixing the drugs, pausing the critical drip, or delaying care.
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Pharmacological and Parenteral Therapies

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