What is the first step in providing first aid for a snake bite?

RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Nursing Foundation

Hard

Appeared in: RRB Nsg. Superintendent - 29 April 2025 (Shift-3rd)

Explanation

The primary goal of first aid for a snake bite is to slow the systemic absorption of venom. This is best achieved by minimizing movement.
Immobilizing the affected limb with a splint prevents muscle contractions, which are the main pump for moving venom through the lymphatic system.
Keeping the limb at or below heart level uses gravity to delay the venom's return to the central circulation.
This combination of immobilization and positioning is the most effective and safest initial action before the patient can receive definitive medical care (antivenom).

Option A: Cutting the wound is harmful as it can damage underlying structures like nerves and tendons, and introduces a high risk of infection. Sucking is ineffective at removing a significant amount of venom and can introduce bacteria from the mouth into the wound.
Option B: Making the person walk increases muscle activity and heart rate. This accelerates blood and lymph circulation, causing the venom to spread throughout the body much faster, leading to a more rapid onset of systemic symptoms.
Option D: Applying ice causes local vasoconstriction, which can trap the venom in the tissue. For cytotoxic venoms (common in vipers), this concentration of venom can lead to severe local tissue necrosis (death of tissue).

Visual 1: Infographic: A 'Do's and Don'ts of Snake Bite First Aid' infographic, visually summarizing the key actions to take and to avoid.
Visual 2: Diagram: A diagram showing how to properly apply a splint to immobilize a bitten limb (arm or leg), emphasizing that it should be snug but not tight.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain First Aid Management of Snake Bites as background academic context rather than a clinical decision trigger.
Nurses play a vital role in public health education. It is crucial to teach communities to abandon harmful myths like 'cut and suck' and adopt correct first aid, as this can significantly improve patient outcomes.
In the emergency department, a nurse's rapid assessment includes asking about first aid performed at the scene, as incorrect measures (like a tourniquet) may need immediate reversal to prevent further harm.
What if? If a tourniquet was applied by a bystander, the nurse's priority is to notify the physician immediately. The tourniquet should only be removed in a hospital setting where antivenom is ready, as its release can cause a sudden systemic surge of venom.

How to Approach the Question

Identify the core of the question: It asks for the 'first step' in first aid for a snake bite. This is a priority-setting question.
Recall the main principle of snake bite first aid: slow the spread of venom and get the patient to a hospital safely.
Evaluate each option based on this principle.
Option A (Cut/Suck) and Option D (Ice) are harmful interventions that can worsen the injury. Eliminate them.
Option B (Walk) actively spreads the venom faster. Eliminate it.
Option C (Immobilize/Position) is the only action that directly addresses the goal of slowing venom spread. This makes it the correct first step.

Concept Tested & Keywords

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