Initial laboratory analyses of biological samples, such as urine, hair, or blood, to detect the presence of specific substances are crucial for various applications. These preliminary screenings, often employing immunoassay techniques, provide rapid and cost-effective results, indicating whether a substance is likely present above a predetermined cutoff level. For example, a workplace assessment might use this type of initial screening to determine if further, more definitive testing is necessary.
Rapid initial screening plays a vital role in diverse sectors, including workplace safety, healthcare diagnostics, and legal proceedings. They allow for timely intervention and decision-making, facilitating early identification of potential issues and enabling prompt action. Historically, these methods have evolved significantly, improving accuracy, reducing turnaround time, and expanding the range of detectable substances. This advancement has contributed to safer work environments, more effective treatment strategies, and fairer legal outcomes.
