Which of the following is a symptom of an irritant exposure?

• A. Diarrhea
• B. Burning sensation to eyes
• C. Convulsions
• D. Fluid in lungs

Answer: (B)

Irritants cause immediate irritation of mucous membranes, especially the eyes, nose, and throat. When someone is exposed to irritant gases or vapors, the eyes often feel a burning or stinging sensation right away, sometimes with tearing and redness. That burning eye sensation is the classic sign you’re dealing with an irritant exposure.

Diarrhea isn’t an immediate sign of irritation to the eyes or respiratory tract; it suggests ingestion or a systemic effect. Convulsions point to strong CNS involvement or a different kind of toxin, not simply eye irritation. Fluid in the lungs could occur with certain inhalation injuries or chemical pneumonitis, but it’s not the typical, initial hallmark of an irritant exposure. So the burning sensation to the eyes best matches the concept of irritant exposure.