What is the immediate treatment of chemical burn of the eye?

SGPGI Nursing Officer-2022

Medical & Surgical Nursing

Medium

Appeared in: SGPGI Nursing Officer-2022

Explanation

The cornerstone of immediate management for chemical eye burns is copious and prolonged irrigation to dilute and remove the offending agent.
Time is critical. Any delay in finding a specific irrigating fluid increases the risk of permanent corneal damage.
Tap water is readily available in most non-clinical settings and is the recommended initial fluid to start irrigation without delay, as confirmed by multiple nursing and medical sources.
The principle is that the benefit of immediate dilution with a non-sterile fluid like tap water far outweighs the risk of infection or the damage caused by delaying treatment to find a sterile fluid.

Option B: Attempting to neutralize a chemical burn with an alkali (or an acid) is extremely dangerous. This causes an exothermic reaction, which generates heat and results in a thermal burn in addition to the chemical injury, worsening the overall damage.
Option C: While Normal Saline (NS) or other balanced salt solutions are the preferred irrigants in a hospital or clinical setting, they are not the correct answer for immediate treatment if not readily available. The keyword 'immediate' implies the very first action to be taken, where accessibility is key. Delaying irrigation to find NS can lead to more severe and irreversible eye damage.
Option D: Similar to using an alkali, attempting to neutralize a base with an acid is contraindicated. It creates an exothermic reaction, producing heat and causing further thermal injury to the eye.

Clinical Relevance

Nursing practice connection: Knowing First aid management of chemical eye burns helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Nurses in emergency departments, school settings, or occupational health must be prepared to initiate eye irrigation immediately without waiting for a physician's order, as every second counts in preserving a patient's vision.
Patient and public education is a key nursing role. Workers in high-risk environments (e.g., laboratories, construction, cleaning services) should be taught to locate and use emergency eyewash stations immediately upon exposure, using water for at least 15-20 minutes before seeking further medical help.
What if? If the patient is wearing contact lenses during a chemical splash, the immediate priority is still to start irrigation. The lenses should be removed as soon as possible, but irrigation should not be delayed to do so. Continuous flushing can help dislodge the lens, which may have trapped chemicals against the cornea.

How to Approach the Question

First, identify the keywords in the question stem: 'immediate treatment' and 'chemical burn of the eye'.
Recognize that the word 'immediate' is the most critical clue. This directs you to think about first aid actions that can be taken instantly, often outside a formal medical facility.
Evaluate the options based on the principle of immediacy and accessibility. Ask yourself, 'Which of these actions can be performed the fastest in any location?'
Rule out options that are clearly harmful. Neutralizing a chemical with its opposite (acid with alkali, or vice versa) is a known contraindication in first aid because it generates heat and worsens the injury.
Compare the remaining valid options (tap water vs. NS). While NS is the ideal fluid in a clinical setting, tap water is almost universally available. The medical principle 'time is tissue' (in this case, cornea) favors using the most readily available fluid to start treatment without delay.

Concept Tested & Keywords

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E6 Nelson Textbook of Pediatrics(2024) — Volume 2 p. 1787-1789

E6 Nursing Brunner Adult Health 3SA Vol 2 Part 1 pp. 109-111, 108-110