MDARD Michigan Core Pesticide Applicator Practice Exam

What is the term for the process where people develop allergic reactions after repeated pesticide exposures?

1. Sensitization

2. Exposure

3. Ingestion

4. Reaction

The correct answer is: Sensitization

The process where individuals develop allergic reactions after repeated exposures to pesticides is known as sensitization. This term refers to the immune system's increased response to a substance after initial exposure, meaning that subsequent exposures can lead to more severe allergic reactions. Sensitization can occur through various routes of exposure, including skin contact, inhalation, or ingestion, and may manifest in symptoms such as skin irritation, respiratory issues, and other allergic reactions. The other choices pertain to related but distinct concepts. Exposure generally refers to any contact with a pesticide, while ingestion specifically denotes consuming a pesticide, neither of which necessarily imply the development of an allergic response. The term reaction is too broad and does not specifically address the immune mechanism involved in sensitization. Understanding sensitization is crucial for pesticide applicators to recognize and mitigate potential health risks associated with pesticide use.