Which of the following route is contraindicated for administration of potassium chloride?

NORCET 3 - 2022 (Shift-1)

Pharmacology

Easy

Appeared in: NORCET 3 - 2022 (Shift-1)

Explanation

Administering potassium chloride (KCl) as a rapid intravenous (IV) bolus or 'push' is absolutely contraindicated and is a lethal error.
This route delivers a highly concentrated dose of potassium directly to the heart muscle, causing immediate and severe hyperkalemia.
The sudden spike in potassium disrupts the heart's electrical conduction system, leading to fatal cardiac dysrhythmias like ventricular fibrillation or asystole, and subsequent cardiac arrest.
Due to its high risk, IV KCl is classified as a high-alert medication, and its administration via IV push is considered a 'never event' in healthcare.

Option B: This is the standard, safe, and correct method for administering IV potassium. It is not a contraindication.
Option C: This route is also contraindicated because KCl is a severe tissue irritant that causes intense pain, inflammation, and tissue necrosis. However, it is not as immediately life-threatening as an IV bolus.
Option D: This is a preferred route for KCl infusion, not a contraindication. The large blood volume and high flow rate in a central vein provide rapid dilution, minimizing the risk of phlebitis and pain associated with peripheral infusions.

Visual 1: Diagram: 'Safe vs. Unsafe KCl Administration'. This visual would show a large red 'X' over a syringe being pushed directly into an IV port, labeled 'IV Bolus - LETHAL'. Next to it, a green checkmark would be over an IV bag clearly labeled 'KCl added' connected to an infusion pump, labeled 'IV Infusion - SAFE'.
Visual 2: Infographic: 'High-Alert Medication: Potassium Chloride'. This would list the critical safety checks for nurses: 1. NEVER IV Push. 2. ALWAYS Dilute. 3. ALWAYS Use an Infusion Pump. 4. CHECK Renal Function & Urine Output. 5. MONITOR IV Site & Heart Rhythm.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Contraindications for Potassium Chloride (KCl) Administration as background academic context rather than a clinical decision trigger.
A nurse's primary responsibility when administering high-alert medications like KCl is patient safety. Understanding and adhering to administration protocols, such as never giving KCl via IV push, is a fundamental and non-negotiable aspect of safe nursing practice.
Many institutions have a 'double-check' policy for high-alert medications, where two registered nurses must independently verify the drug, dose, route, and pump settings before administration to prevent errors.
What if? The patient has severe renal failure (e.g., anuric). In this case, the nurse must hold the KCl infusion and immediately contact the healthcare provider to question the order. Administering potassium to a patient who cannot excrete it would lead to life-threatening hyperkalemia, even with a slow, diluted infusion.

How to Approach the Question

First, identify the keyword 'contraindicated' and the specific drug 'potassium chloride'. This signals the question is about a safety-critical topic.
Recall that potassium chloride is a high-alert medication with very strict administration rules.
Evaluate each option based on safety principles for KCl. Option A (IV bolus) and Option C (IM route) are both known contraindications.
When a question presents two incorrect/contraindicated actions, determine which one poses the most immediate and severe risk. A rapid IV bolus of KCl is directly lethal, causing cardiac arrest.
An IM injection causes severe tissue damage but is not as immediately life-threatening.
Therefore, the IV bolus is the most critical contraindication and the best answer.

Concept Tested & Keywords

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