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Zorluk: ZorPharmacological and Parenteral Therapies

A critically ill client is receiving a continuous intravenous (IV) infusion of norepinephrine for the management of severe septic shock. The client's mean arterial pressure (MAP) is currently maintained at 68 mm Hg. Arterial blood gas results reveal severe metabolic acidosis, and the healthcare provider prescribes a stat intravenous bolus of sodium bicarbonate. The client currently has a single-lumen central venous catheter and no peripheral IV access. Which action by the nurse represents the safest and most appropriate clinical judgment?

  1. Establish a large-bore peripheral intravenous catheter to administer the sodium bicarbonate bolus independentlyCevap
  2. B
    Pause the continuous norepinephrine infusion, flush the central line, administer the bolus, and promptly resume the vasopressor
  3. C
    Attach the sodium bicarbonate syringe to the Y-site closest to the central line insertion site to minimize medication contact time
  4. D
    Administer the prescribed sodium bicarbonate bolus slowly over 60 minutes via a syringe pump to prevent sudden hemodynamic shifts

Cevap

Establish a large-bore peripheral intravenous catheter to administer the sodium bicarbonate bolus independently.
The correct action is to establish a new peripheral intravenous line. Norepinephrine is a life-sustaining vasopressor; pausing the infusion in a client with septic shock will likely cause an immediate, profound drop in blood pressure. Furthermore, sodium bicarbonate is highly alkaline and physically incompatible with catecholamines like norepinephrine. Mixing them at a Y-site or in the same line causes the norepinephrine to be inactivated and can lead to dangerous precipitation. Because the client only has a single-lumen central line, the safest action is to rapidly secure separate peripheral IV access to administer the incompatible stat medication without interrupting continuous hemodynamic support.

Adım Adım Çözüm

1
Analyze the client's current hemodynamic status and continuous therapies.
The client is in severe septic shock and strictly dependent on a continuous norepinephrine infusion to maintain a marginal MAP of 68 mm Hg.
Understanding the critical nature of the continuous infusion establishes that it cannot be safely interrupted.
2
Evaluate the prescribed medication and its compatibility with the current continuous infusion.
Sodium bicarbonate is strongly alkaline and is physically incompatible with norepinephrine (a catecholamine).
Mixing these medications causes rapid inactivation of the vasopressor and precipitation within the IV tubing.
3
Determine the safest administration route given the client's current venous access limitations.
Since the client only has a single-lumen central line and the medications cannot be mixed or the primary infusion paused, a new venous access must be rapidly established.
A separate peripheral line allows for the immediate, safe administration of the stat sodium bicarbonate bolus without compromising the client's hemodynamic stability.

Anahtar Kavram

Intravenous Medication Compatibility and Hemodynamic Prioritization
Tahmini Süre:1m 30s
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Konular

Pharmacological and Parenteral Therapies

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