Indoor Air sciences CSMI Practice Exam

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Which of the following is NOT a function of the chain of custody form related to bioaerosols?

Track mishandling
Testing a lab's proficiency
Qualifying laboratory results as evidence in legal cases
Preventing tampering

The correct answer is: Testing a lab's proficiency

The chain of custody form plays a critical role in the handling and analysis of bioaerosol samples. It serves several key functions, and one of the significant roles it does not fulfill is assessing a lab's proficiency in conducting tests. When considering the importance of a chain of custody form, it primarily functions to ensure that the sample has been collected, handled, and analyzed in a manner that preserves its integrity from the moment of collection to the point of analysis. This includes tracking each individual who has interacted with the sample, which helps establish accountability and creates a clear record of the sample's history. Therefore, it serves to track mishandling and prevent tampering, ensuring that any results from the laboratory are valid and reliable for use in legal contexts. However, a chain of custody form does not itself evaluate or test a laboratory's proficiency. Proficiency testing involves separate procedures and evaluations such as inter-laboratory comparisons or accreditation processes that assess how well a laboratory can perform certain tests according to established standards. Thus, while proficiency is essential for ensuring reliable results, it is not a direct function of the chain of custody form.