If a patient's immune system exhibits an overactive response to a minor allergen, producing excessive pro-inflammatory cytokines which overwhelm the body's natural regulatory mechanisms, which consequence follows?

💡 Explanation

Cytokine storm overwhelms the negative feedback loops controlling inflammation, triggering systemic inflammation and increasing vascular permeability leading to fluid extravasation into tissues, causing capillary leak syndrome, because the excessive cytokine release damages endothelial cells. Therefore, C is correct, rather than A, B, or D, which represent immune responses in controlled, localized inflammatory reactions.

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