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Zorluk: ZorPharmacological and Parenteral Therapies

A client with severe gastroenteritis is admitted with a serum potassium level of 2.7 mEq/L2.7 \text{ mEq/L} (2.7 mmol/L2.7 \text{ mmol/L}). The healthcare provider prescribes an intravenous (IV) infusion of 40 mEq40 \text{ mEq} (40 mmol40 \text{ mmol}) of potassium chloride (KCl) diluted in 250 mL250 \text{ mL} of 0.9%0.9\% sodium chloride to be administered via a peripheral intravenous catheter. Which of the following nursing actions are required for the safe administration of this medication? (Select all that apply.)

  1. Administer the infusion via a programmable electronic infusion pump.Cevap
  2. Assess renal function by verifying a urine output of at least 30 mL/hr30 \text{ mL/hr}.Cevap
  3. Ensure the infusion rate does not exceed 10 mEq10 \text{ mEq} per hour.Cevap
  4. D
    Administer the prescribed dose as a rapid intravenous (IV) push in the event of life-threatening arrhythmias.
  5. E
    Piggyback the potassium chloride solution into an IV line currently transfusing packed red blood cells.

Cevap

The nurse must use a programmable electronic infusion pump, verify a minimum urine output of 30 mL/hr30 \text{ mL/hr}, and ensure the peripheral infusion rate does not exceed 10 mEq10 \text{ mEq} per hour.
The correct actions for safe intravenous potassium administration include using an electronic volumetric pump to ensure a precise delivery rate and prevent an accidental bolus. Verifying a urine output of at least 30 mL/hr30 \text{ mL/hr} is critical because potassium is primarily excreted by the kidneys; oliguria can quickly lead to fatal hyperkalemia. Furthermore, the standard safety guideline for infusing potassium through a peripheral line is to never exceed a rate of 10 mEq/hr10 \text{ mEq/hr} to prevent cardiac toxicity and severe phlebitis.

Adım Adım Çözüm

1
Identify the high-risk nature of the prescribed medication and the route of administration.
Recognize that intravenous potassium chloride is a high-alert medication that requires strict parenteral safety protocols to prevent cardiac toxicity.
Potassium dictates cardiac muscle action potentials; rapid shifts in serum levels can cause lethal dysrhythmias.
2
Evaluate the physiological assessment parameters required before initiating the infusion.
Determine that renal function must be adequate (indicated by a urine output of >30 mL/hr>30 \text{ mL/hr}) before giving potassium.
Because potassium is excreted by the kidneys, administering it to a client with acute kidney injury or oliguria quickly leads to hyperkalemia.
3
Determine the safe administration equipment and maximum rate limits for a peripheral IV line.
Select an electronic volumetric pump to prevent free-flow and confirm the rate is set to ≤10 mEq/hr\leq 10 \text{ mEq/hr}.
Gravity drip tubing is unsafe for high-alert medications, and rates >10 mEq/hr>10 \text{ mEq/hr} through a peripheral vein cause severe tissue irritation and cardiac risk.
4
Identify absolute contraindications for parenteral potassium administration to rule out unsafe actions.
Rule out direct IV push administration and incompatible concurrent infusions, such as blood products.
IV push potassium causes immediate cardiac arrest. Furthermore, blood products are incompatible with medication infusions.

Anahtar Kavram

Safe Parenteral Administration of High-Alert Electrolytes (Potassium Chloride)
Tahmini Süre:1m 30s
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