INI-CET EXAM -2025
Medical & Surgical Nursing
Easy

Crocodile-like skin is seen in which of the following?

Appeared in: INI-CET EXAM -2025

Explanation

  • High-voltage electrical current generates extreme heat as it passes through tissues, causing coagulation necrosis.
  • This process results in a hard, dry, leathery eschar (dead tissue) at the entry and exit points of the current.
  • The appearance of this eschar is often charred, depressed, and yellow-grey, which is clinically described as 'crocodile-like skin'.
  • This type of burn is a full-thickness injury, destroying nerve endings and making the area painless.

Why Other Options Were Wrong

  • Option A: Chronic arsenic poisoning causes distinct skin changes, but not 'crocodile skin'. The classic signs are hyperkeratosis (thickening of the skin, especially on palms and soles) and 'raindrop' hyperpigmentation.
  • Option C: Moist burns, or scalds, are caused by hot liquids or steam. They typically result in partial-thickness burns with erythema (redness), pain, and blistering. The skin is moist, not dry and leathery.
  • Option D: The appearance of chemical burns is highly variable depending on the specific chemical agent, its concentration, and duration of contact. While severe necrosis can occur, 'crocodile skin' is not a standard or specific descriptor for chemical burns.

Related Visual

Visual explanation — Related Visual
  • Visual 1: Image - A close-up photograph of a high-voltage electrical burn, clearly showing the dry, leathery, and charred eschar characteristic of 'crocodile skin'.
  • Visual 2: Diagram - A flowchart illustrating the pathophysiology of electrical injury, from current entry to coagulation necrosis and deep tissue damage, highlighting the 'iceberg effect'.
Clinical Relevance
  • Nursing practice connection: This is primarily an exam-oriented knowledge point with limited direct bedside application, so retain Identification of the cause of specific dermatological findings in trauma and toxicology as background academic context rather than a clinical decision trigger.
  • A nurse must recognize that the 'crocodile skin' of a high-voltage burn signifies a severe, deep injury, not just a surface wound. The external damage is often minimal compared to the internal destruction.
  • Immediate nursing priorities for a patient with high-voltage electrical injury include cardiac monitoring (ECG) for life-threatening arrhythmias, assessing for compartment syndrome, and managing potential rhabdomyolysis (muscle breakdown) which can lead to acute kidney injury.
  • What if? - If the patient had a low-voltage electrical injury (e.g., from a household appliance), the presentation would be different. It might cause a small, localized contact burn or, more seriously, induce ventricular fibrillation without the characteristic 'crocodile skin' deep tissue burn.
How to Approach the Question
  • First, identify the key descriptive phrase in the question: 'Crocodile-like skin'. This is a specific clinical sign.
  • Next, evaluate each option based on your knowledge of pathology and trauma.
  • Recall or deduce the effects of each condition on the skin. High-voltage electricity generates intense heat, causing deep tissue coagulation.
  • Contrast this with the effects of arsenic (a poison causing pigmentation/keratosis), moist heat (scalds causing blisters), and chemicals (variable effects).
  • The description of a dry, leathery, coagulated burn strongly matches the pathophysiology of high-voltage electrical injury, leading to the correct answer.
Concept Tested & Keywords
  • Concept Tested: Identification of the cause of specific dermatological findings in trauma and toxicology.
  • Stem keywords: Crocodile-like skin
  • Lead-in keywords: seen in

Question ID

QeF0X0XxhyzGQzdEIrbQk3

Practise the full INI-CET EXAM -2025

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

More Integumentary Function Questions

More INI-CET EXAM -2025 Questions