A patient comes to the emergency ward with a snake bite. What would be the first nursing priority intervention by the nursing officer?

Appeared in: Central Institute of Psychiatry - 9 July 2022

Explanation

The highest priority is to immobilize the affected limb to slow the lymphatic spread of venom.
A significant portion of snake venom is transported from the bite site via the lymphatic system.
Muscle contractions from movement act as a pump for the lymphatic system, accelerating the absorption of venom into the systemic circulation.
Immobilization, often with a splint, is a crucial first-aid measure that buys time for definitive hospital treatment like antivenom administration.

Option A: This is a secondary action and no longer universally recommended as the first priority. The main goal is to stop venom spread, not manage its position relative to the heart.
Option B: This is the first priority in a pre-hospital setting (scene safety), not in an emergency ward where the environment is already controlled and safe.
Option C: This is an important and necessary action, but it is secondary to immobilization. The immediate threat is the systemic spread of venom, not the localized swelling.

Clinical Relevance

Nursing practice connection: Prioritize focused assessment, early escalation, and real-time monitoring when managing First aid and emergency management of snakebites in acute care settings.
In the emergency department, nurses must act swiftly and correctly to manage snakebites. Prioritizing immobilization directly impacts patient outcomes by delaying systemic envenomation.
Nurses play a key role in patient education, advising against harmful traditional or outdated first-aid measures like tourniquets or incision and suction.
What if? If the patient presented with signs of respiratory distress or shock, the first priority would shift to the ABCs (Airway, Breathing, Circulation), even before limb immobilization. Resuscitation always takes precedence.

How to Approach the Question

First, identify the core clinical problem (snakebite) and the setting (emergency ward).
The question asks for the 'first nursing priority', which requires you to rank several potentially correct actions.
Evaluate each option based on its immediate impact on pathophysiology. The primary danger of a snakebite is the systemic spread of venom.
Consider the mechanism of venom spread. It travels mainly through the lymphatic system, which is accelerated by muscle movement.
Therefore, the action that most directly slows this spread is the highest priority. Immobilization (D) prevents muscle pumping of lymph.
Rule out other options based on timing and setting. 'Take patient to a safer side' (B) is a pre-hospital action. 'Remove jewellery' (C) and positioning (A) are important but secondary to stopping the venom's spread.

Concept Tested & Keywords

Concept Tested: First aid and emergency management of snakebites.
Stem keywords: snake bite, emergency ward, first nursing priority
Lead-in keywords: first nursing priority intervention
Clinical cues: The setting is the emergency ward, which means pre-hospital actions like scene safety are already complete.

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E6 Medicine Davidson Principles Practice 24e p. 177-179

E6 Medicine Harrison 22e Part 2 p. 1622-1624

E6 Nursing Brunner Adult Health 3SA Vol 2 Part 3 p. 128-130

Practise the full Central Institute of Psychiatry - 9 July 2022

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