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← Human Body & HealthWhy does administering antipyretics to a patient with heatstroke, particularly after exertion, sometimes prove ineffective at rapidly lowering their core body temperature?
A)Antipyretics induce peripheral vasoconstriction counteracting cooling.
B)Metabolic rate increases rapidly exceeding cooling.
C)Thermoregulatory set-point mechanisms are overwhelmed.✓
D)Antipyretics inhibit compensatory shivering reflexes.
💡 Explanation
In heatstroke, the hypothalamus's thermoregulatory set-point is overridden by the severity of the hyperthermia; therefore, antipyretics, which typically act by reducing the hypothalamic set-point, become ineffective because the primary issue isn't a regulated fever, rather than an overwhelmed system.
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