NORCET 9 Mains - 2025
Medical & Surgical Nursing
Easy

Which of the following clinical manifestations are seen in heat stroke, EXCEPT?

Appeared in: NORCET 9 Mains - 2025

Explanation

  • the sign that is absent in classic heat stroke.
  • Classic heat stroke is characterized by anhidrosis (the absence of sweating) because the body's thermoregulatory center has failed.
  • The skin becomes hot, red, and dry, which is a key diagnostic differentiator from heat exhaustion.
  • While exertional heat stroke can sometimes present with sweating, the classic form, and the most common distinguishing feature taught, is the lack of sweat.

Why Other Options Were Wrong

  • Option B: This is a hallmark sign of heat stroke. Severe hyperthermia causes central nervous system (CNS) dysfunction, leading to confusion, delirium, seizures, or coma.
  • Option C: This is a common finding in the initial stages of heat stroke. The circulatory system becomes hyperdynamic to try and dissipate heat, resulting in a rapid and forceful (bounding) pulse.
  • Option D: This is a defining criterion for heat stroke. The condition is diagnosed when the core body temperature rises dangerously high, typically above 40°C (104°F).

Related Visual

side table comparing the key signs and symptoms of Heat Exhaustion versus Heat Stroke, highlighting differences in skin condition sweating vs. dry, mental status, pulse, and c...
Clinical Relevance
  • Nursing practice connection: Knowing Differentiating the clinical signs of heat stroke from other heat-related illnesses helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
  • Recognizing the absence of sweating in a patient with hyperthermia and altered mental status is critical for a nurse to immediately identify heat stroke, a medical emergency, and initiate life-saving rapid cooling protocols.
  • The priority nursing intervention for heat stroke is rapid and aggressive cooling to lower the core body temperature and prevent irreversible organ damage and death.
  • What if? If the patient had the same symptoms but was sweating profusely, the nurse should suspect heat exhaustion. While still serious, the immediate management would focus on moving to a cool place, rehydration, and monitoring, as the body's cooling mechanism has not yet completely failed.
How to Approach the Question
  • First, identify the keywords in the stem: "clinical manifestations," "heat stroke," and the negative lead-in "EXCEPT."
  • Understand that an "EXCEPT" question requires you to find the option that is FALSE or inconsistent with the condition (heat stroke).
  • Evaluate each option against your knowledge of heat stroke's pathophysiology.
  • Option A: Is sweating excessive in heat stroke? No, the classic sign is a lack of sweating (anhidrosis) as the regulatory system fails.
  • Option B: Is confusion present? Yes, it's a hallmark of CNS dysfunction from heat.
  • Option C: Is a bounding pulse present? Yes, it's an early sign of the hyperdynamic state.
Concept Tested & Keywords
  • Concept Tested: Differentiating the clinical signs of heat stroke from other heat-related illnesses.
  • Stem keywords: clinical manifestations, heat stroke
  • Lead-in keywords: EXCEPT
  • Negative lead-in flag: The question asks for the sign that is NOT present in heat stroke.

Question ID

Qf5DILXHjsOEeRjOf8rKKM

Reference Book

E6 Medicine Harrison 22e Part 2 p. 1678-1680

E6 Medicine Davidson Principles Practice 24e p. 187-189

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