Which of the following substances is NOT typically tested for in fitness-for-duty programs?

In fitness-for-duty programs, the goal is to ensure that individuals are not impaired by substances that could affect their job performance, safety, and decision-making capabilities. Each of the substances listed has a different profile of testing relevance, but heroin is often less commonly included in standard panels than the others.

Amphetamines, PCP (phencyclidine), and marijuana are frequently tested because they have substantial effects on cognitive and motor functions, which can directly impact an individual's ability to perform their duties safely and effectively. These substances have well-documented impairments associated with their use in a work context, particularly in safety-sensitive positions.

Heroin, while harmful and illegal, is less commonly tested for in many occupational fitness-for-duty programs. This is partly due to its specific profile and the fact that it might show up less frequently compared to other typical substances of abuse in certain workplace contexts. Additionally, testing programs often target substances that are more prevalent in their specific industries or settings.

By focusing on the more commonly abused substances that directly affect a broader range of job functions and safety issues, fitness-for-duty programs prioritize detecting substances that pose the highest risks to workplace safety and performance.