Which of the following symptom is not found in case of ‘Heat stroke’?

UPPSC 2017

Medical & Surgical Nursing

Medium

Appeared in: UPPSC 2017

Explanation

Profuse sweating, or diaphoresis, is the characteristic sign of heat exhaustion, where the body is still attempting to cool itself down through evaporation.
In classic heat stroke, the body's thermoregulatory center in the hypothalamus fails, leading to a cessation of sweating (anhidrosis).
This failure to sweat is a critical sign that differentiates heat stroke from heat exhaustion and is the reason the skin becomes hot and dry.

Option A: A body temperature of 106°F (41.1°C) is a classic and severe sign of heat stroke. The condition is defined by a core body temperature rising above 104°F (40°C).
Option B: A rapid pulse rate (tachycardia) is an expected compensatory mechanism in heat stroke as the heart works harder to pump blood to the skin to dissipate heat and respond to systemic stress.
Option C: Hot and dry skin is a hallmark sign of classic heat stroke. It occurs because the body has lost its ability to cool itself through sweating.

Clinical Relevance

Nursing practice connection: Knowing Clinical manifestations of heat stroke and its differentiation from heat exhaustion helps nurses interpret findings accurately and avoid errors in routine assessment, medication administration, and patient teaching.
Recognizing the absence of sweating in a hyperthermic patient is a critical nursing assessment finding that indicates a progression from heat exhaustion to the life-threatening emergency of heat stroke.
Immediate initiation of rapid cooling protocols is the highest priority nursing intervention to reduce mortality and morbidity from brain and organ damage.
Patient education on hydration, avoiding exertion during peak heat, and recognizing early signs of heat exhaustion is a key preventive role for nurses in the community.

How to Approach the Question

First, identify the negative framing of the question with the keyword 'not'. This means you are looking for the sign or symptom that is absent in heat stroke.
Recall the pathophysiology of heat-related illnesses. Heat exhaustion is the body's response to excessive loss of water and salt, primarily through sweating.
Recall that heat stroke is a more severe condition where the body's temperature control system fails.
Evaluate each option against the known characteristics of heat stroke.
A very high temperature, rapid pulse, and hot/dry skin are all classic signs of thermoregulatory failure.
Profuse sweating is the body's primary cooling mechanism. Its presence is characteristic of heat exhaustion, while its absence is a hallmark of classic heat stroke. Therefore, it is the symptom 'not found'.

Concept Tested & Keywords

Concept Tested: Clinical manifestations of heat stroke and its differentiation from heat exhaustion.
Stem keywords: symptom, Heat stroke
Lead-in keywords: not found
Negative lead-in flag: Question asks for the symptom NOT found, which requires identifying the option that is inconsistent with the diagnosis.

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