Which of the following clinical manifestations are seen in heat stroke, EXCEPT?& x20; - NORCET 9 Mains - 2025

NORCET 9 Mains - 2025

Medical & Surgical Nursing

Medium

Appeared in: NORCET 9 Mains - 2025

Explanation

The correct option is 'Excessive sweating' because it is the primary sign of heat exhaustion, not heat stroke.
The hallmark of classic heat stroke is anhidrosis (absence of sweating), resulting in hot, dry skin.
The body's thermoregulatory center in the hypothalamus fails during heat stroke, shutting down the sweating mechanism.
In contrast, during heat exhaustion, the sweating mechanism is still active, leading to profuse diaphoresis.

Option B: This is a cardinal sign of heat stroke. The extreme core temperature causes direct thermal injury to the central nervous system, leading to symptoms ranging from confusion to coma.
Option C: This is a typical finding in the early, hyperdynamic phase of heat stroke. The cardiovascular system attempts to compensate for the extreme heat by dramatically increasing cardiac output to perfuse the skin and dissipate heat, resulting in a strong, bounding pulse.
Option D: This is a defining criterion for heat stroke. The condition is characterized by a core body temperature that is severely elevated, typically above 104°F (40°C), due to the complete failure of the body's cooling mechanisms.

Visual 1: Infographic: Side-by-side comparison of signs and symptoms for Heat Exhaustion vs. Heat Stroke, highlighting the key differentiators like skin condition (sweating vs. dry) and mental status.
Visual 2: Flowchart: Decision-making tree for emergency response to heat-related illness, starting with assessing consciousness and skin temperature.

Clinical Relevance

Nursing practice connection: Knowing Clinical manifestations of heat stroke 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 identify heat stroke, a life-threatening emergency, and differentiate it from the less severe heat exhaustion.
Immediate initiation of rapid cooling protocols is the single most important intervention to prevent mortality and permanent neurological damage in heat stroke.
What if? If the patient had the same symptoms but their skin was cool and clammy with profuse sweating, the diagnosis would shift to heat exhaustion. The priority would be to move them to a cool place, provide oral rehydration with electrolytes, and monitor closely, with less aggressive cooling measures needed.

How to Approach the Question

First, identify the keywords in the stem. The key concepts are 'heat stroke' and the negative lead-in 'EXCEPT'.
This 'EXCEPT' format means you are looking for the option that is NOT a sign of heat stroke.
Review the core pathophysiology of heat stroke: a failure of the body's thermoregulation, leading to a rapid rise in core temperature.
Evaluate each option against your knowledge of heat stroke signs:
Does heat stroke cause confusion? Yes, it's a hallmark CNS sign.
Does it cause a bounding pulse? Yes, in the early hyperdynamic stage.

Concept Tested & Keywords

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