Concentrated NaOH spilled on your hand while you were in the laboratory. What will be your next action?

AIIMS Delhi NO-2016

Nursing Foundation

Easy

Appeared in: AIIMS Delhi NO-2016

Explanation

The standard and most critical first aid for a liquid chemical spill on the skin is immediate and copious irrigation with water.
This action serves to dilute the chemical (in this case, NaOH, a strong alkali) and physically wash it away from the skin.
Washing minimizes the chemical's contact time with the tissue, thereby stopping the burning process and reducing the severity of the injury.
Flushing should be performed continuously for at least 15-20 minutes to ensure the complete removal of the corrosive agent.

Option A: Wiping a liquid chemical can spread the corrosive substance to a larger area of the skin and does not effectively remove it, increasing the overall tissue damage.
Option B: Attempting to neutralize a strong alkali with an acid causes a strong exothermic (heat-releasing) reaction, which will inflict a severe thermal burn on top of the chemical burn.
Option D: Applying a bandage immediately will trap the corrosive chemical against the skin, preventing its removal and causing a more severe, deeper burn.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain First Aid for Chemical Burns (Alkali) as background academic context rather than a clinical decision trigger.
Nurses must be proficient in emergency first aid for chemical exposures, as they can occur in various settings, including hospitals (with sterilizing agents), industrial sites, and homes.
Immediate and correct action, like copious irrigation, is the single most important factor in reducing the morbidity associated with chemical burns, preventing deep tissue necrosis, scarring, and systemic toxicity.
What if the substance was a dry powder like powdered lime (calcium oxide)? In that case, the first step would be to carefully brush off as much of the powder as possible before flushing with water. Adding water to some dry chemicals can create a heat-generating reaction.

How to Approach the Question

First, identify the hazard presented in the question. The scenario involves a spill of 'Concentrated NaOH,' which is a strong, corrosive alkali.
Recall the primary principle of first aid for chemical spills on skin: the immediate priority is to stop the burning process by removing the chemical agent.
Evaluate each option based on this principle.
Option C, washing with water, directly achieves the goal of diluting and removing the liquid chemical.
Analyze the other options for why they are incorrect. Wiping (A) spreads the chemical. Neutralizing (B) causes a dangerous heat reaction. Bandaging (D) traps the chemical. All of these actions would worsen the injury.
Conclude that immediate irrigation with water is the only safe and effective initial action.

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