The nurse must ensure safe administration to prevent complications such as cardiac arrhythmias or tissue necrosis. Which of the following statements is correct regarding potassium chloride injection?

1. A

   Should be administered by IV bolus

2. B

   Should be dissolved in 0.9% Normal Saline (NS) and given via infusion pump

3. C

   Should be administered by intramuscular (IM) route

4. D

   Should be dissolved in dextrose solution

Appeared in: NORCET 6 mains-2024

Explanation

Listen in Hindi

• Potassium Chloride (KCl) is a high-alert medication that must be diluted in a compatible IV fluid, such as 0.9% Normal Saline, before administration.
• Using an infusion pump is mandatory to ensure a slow, controlled rate (typically not exceeding 10 mEq/hr) to prevent rapid, dangerous increases in serum potassium.
• This method minimizes the risk of life-threatening cardiac arrhythmias and prevents venous irritation (phlebitis) and tissue damage (necrosis).

Why Other Options Were Wrong

• Option A: Administering KCl as an IV bolus or push is extremely dangerous and can be fatal. It causes a sudden, massive spike in serum potassium, leading to immediate cardiac arrest.
• Option C: KCl is a severe tissue irritant. Injecting it intramuscularly (IM) would cause intense pain, inflammation, and likely lead to tissue necrosis (death of tissue) at the injection site.
• Option D: Dextrose solutions stimulate insulin release. Insulin causes potassium to shift from the blood into the cells, which can temporarily lower the serum potassium level. This is counterproductive when treating hypokalemia (low potassium).

Related Visual

• Visual 1: Infographic - Illustrating the 'Do's and Don'ts' of IV Potassium Administration, highlighting key safety checks like dilution, infusion pump use, and rate limits.
• Visual 2: Diagram - Showing a proper IV infusion setup with an infusion pump, a labeled IV bag containing diluted KCl, and highlighting the monitoring of the IV site on a patient's arm.
• Visual 3: Chart - Comparing the effects of different administration routes (IV bolus, IV infusion, IM) on serum potassium levels and patient safety, visually demonstrating the danger of a bolus.

Clinical Relevance

• Nursing practice connection: Knowing Safe administration of high-alert medications, specifically Potassium Chloride (KCl) helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
• Administering high-alert medications like KCl is a critical nursing responsibility. Errors can have fatal consequences, making adherence to safety protocols non-negotiable.
• The mnemonic 'No Pees, No K' is a vital safety check. Before administering potassium, the nurse must confirm adequate urine output, as impaired kidney function can lead to toxic accumulation.
• Patient safety depends on the nurse's vigilance in monitoring the IV site for phlebitis/infiltration and the patient for signs of hyperkalemia (muscle weakness, palpitations, ECG changes).

How to Approach the Question

• First, identify the core of the question: it's about the safe administration of a specific, high-risk drug (Potassium Chloride).
• Recall the key properties of KCl: it's a high-alert medication, a cardiac irritant, and a tissue vesicant.
• Evaluate each option against fundamental medication safety principles.
• Eliminate Option A (IV bolus) immediately, as pushing electrolytes is almost always contraindicated and known to be lethal with KCl.
• Eliminate Option C (IM route) because vesicant or highly irritating substances are not given intramuscularly due to tissue damage risk.
• Compare Option B and D. Both involve dilution. The key difference is the diluent. Recall the physiological effect of dextrose (stimulates insulin, which shifts K+ into cells). This makes it less ideal than saline for correcting low potassium. Therefore, saline is the safer, more standard choice.

Concept Tested & Keywords

• Concept Tested: Safe administration of high-alert medications, specifically Potassium Chloride (KCl).
• Stem keywords: potassium chloride injection, safe administration, cardiac arrhythmias, tissue necrosis
• Lead-in keywords: correct regarding
• Negative lead-in flag: false

Question ID

QCq89xZr7H8Q5iSp64TPiJ

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