What is the immediate first aid measure for eye poisoning?

Appeared in: NHM UP Staff Nurse-2023 shift 1st

Explanation

Immediate and copious irrigation with water is the most critical first aid step for chemical eye exposure to dilute and wash away the harmful substance.
This action minimizes the chemical's contact time with the delicate tissues of the cornea and conjunctiva, preventing or reducing the severity of burns and long-term damage.
First aid guidelines recommend continuous flushing for at least 15-20 minutes to ensure thorough decontamination of the entire ocular surface.

Option A: The small volume of standard eye drops is completely insufficient to wash out a chemical agent. They are designed for medication delivery, not large-volume irrigation.
Option B: While the eye must be held open to allow for irrigation, simply avoiding blinking is a passive measure that does nothing to remove the toxic substance from the eye.
Option C: This is dangerous. Contact lenses can trap the chemical against the cornea, creating a reservoir that intensifies and prolongs the chemical burn, leading to more severe injury.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain First aid management for chemical eye injuries (ocular poisoning) as background academic context rather than a clinical decision trigger.
In any setting (home, workplace, or hospital), immediate action to irrigate the eye after chemical exposure can be vision-saving. Nurses must be able to instruct bystanders or perform this action immediately.
Nurses in emergency departments must be prepared to initiate copious irrigation immediately, as 'time is tissue.' The chemical type (acid vs. alkali) should be identified, as alkali burns are typically more severe due to deeper tissue penetration.
What if? If the chemical is a dry powder (e.g., lime), the nurse should first attempt to brush off as much of the powder as possible before beginning irrigation. This prevents the powder from forming a more concentrated, corrosive solution when water is added.

How to Approach the Question

Identify the keywords in the question: 'immediate first aid' and 'eye poisoning'. This signals a need for a priority action.
Understand the goal of first aid for poisoning: to remove or dilute the harmful substance as quickly as possible.
Analyze each option based on this goal:
Option A (eye drops): Insufficient volume for removal.
Option B (avoid blinking): Passive action, does not remove the poison.
Option C (do not remove contacts): Traps the poison, making the injury worse.

Concept Tested & Keywords

Concept Tested: First aid management for chemical eye injuries (ocular poisoning).
Stem keywords: immediate first aid, eye poisoning
Lead-in keywords: What is

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Practise the full NHM UP Staff Nurse-2023 shift 1st

Attempt every question from this paper in a timed mock, then review the full solution for each one.