'Acute injury' in the context of pesticide exposure specifically refers to the immediate effects that result from a single exposure to a pesticide. This type of injury can manifest quickly, often within hours or days of the exposure, and may include symptoms such as headaches, dizziness, skin irritation, or respiratory problems depending on the pesticide and the level of exposure. Recognizing acute injuries is crucial for effective response and treatment, as they require prompt attention to mitigate health risks.
In contrast, other options describe effects that do not align with the definition of acute injury. Long-term effects after repeated exposure typically refer to chronic health issues that develop over an extended period and result from cumulative exposure. Effects that occur only after weeks would also signify a delay, making them chronic rather than acute. Reversible effects highlight a different aspect of toxicity, focusing more on the nature of the injury rather than the timing of its occurrence. Understanding these distinctions helps in the appropriate categorization of pesticide-related health impacts.