Blisters are mainly seen in?

Appeared in: HPSSSB Staff Nurse - 2016

Explanation

Second-degree burns, also called partial-thickness burns, damage the epidermis and part of the dermis.
This damage causes capillaries to leak plasma, which accumulates between the epidermal and dermal layers.
The collection of this fluid forms the characteristic vesicles or blisters seen in this type of burn.
These burns are typically moist, red, and extremely painful due to the exposure of nerve endings.

Option A: First-degree burns only affect the outermost layer of the skin (epidermis). This results in redness, swelling, and pain (like a sunburn), but the damage is not deep enough to cause blister formation.
Option C: Third-degree (full-thickness) burns destroy both the epidermis and the dermis entirely. The skin layers are destroyed, so blisters cannot form. The area appears white, leathery, or charred, and is often painless because nerve endings are destroyed.
Option D: Fourth-degree burns are the most severe, extending through the skin into underlying fat, muscle, and even bone. The tissue is extensively destroyed and charred, making blister formation impossible.

Clinical Relevance

Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Classification and characteristics of burn injuries as background academic context rather than a clinical decision trigger.
Accurate classification of a burn's depth is a critical nursing skill that directly influences treatment decisions, including fluid resuscitation, wound care, and the need for referral to a specialized burn unit.
The presence of blisters is a key visual cue that helps differentiate a partial-thickness (2nd degree) from a superficial (1st degree) or full-thickness (3rd degree) burn, guiding initial management.
What if? If a patient with second-degree burns has very large blisters or blisters that have ruptured, the nursing priority shifts. The focus becomes preventing infection in the open wound and managing pain, often requiring debridement and application of antimicrobial dressings, rather than just leaving them intact.

How to Approach the Question

First, identify the key term in the question, which is 'blisters'.
Recall the defining characteristics of each degree of burn injury.
Associate the clinical sign (blisters) with the correct burn classification.
A 1st-degree burn is red and dry. A 3rd/4th-degree burn involves tissue destruction so severe that blisters don't form. Therefore, blisters are the hallmark of a 2nd-degree burn.
Select the option that correctly links blisters to the burn degree.

Concept Tested & Keywords

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E6 Pathology- ROBBINS & COTRAN PATHOLOGIC BASIS OF DISEASE 10TH Ed p. 433-435

E6 Nelson Textbook of Pediatrics(2024) — Volume 1 p. 693-695

Practise the full HPSSSB Staff Nurse - 2016

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