What is the timing of peak effects after OC spray onset?

• A. Peaks within a minute or two after onset.
• B. Peaks after several hours.
• C. Never peaks; remains constant.
• D. Peaks immediately at time of exposure.

Answer: (B)

The main idea here is that the strongest OC spray effects don’t happen instantly. When OC spray is released, you get immediate irritation—burning eyes, tearing, coughing, and a sensation of constricted breath. But the most intense symptoms come from the body's inflammatory response, which ramps up over time. This inflammatory cascade and mucous membrane irritation can continue to intensify for hours after exposure, so peak intensity is often reached after several hours, not right at the moment of contact. That’s why the timing of peak effects is described as occurring after several hours.

The other possibilities don’t fit this progression: some effects are felt right away, but the maximal intensity isn’t immediate; and the idea that it never peaks isn’t accurate because the symptoms do reach a high point before gradually subsiding.