Which method is used to test for substances other than alcohol in fitness-for-duty assessments?

Urinalysis is a widely utilized method for testing substances other than alcohol in fitness-for-duty assessments due to its effectiveness, non-invasiveness, and ability to detect a broad range of drugs. This testing method can identify various substances such as illegal drugs, prescription medications, and over-the-counter drugs by analyzing urine samples.

One of the key advantages of urinalysis is its ability to detect metabolites of substances that may have been consumed days or even weeks prior, providing a clearer picture of substance use over time. Moreover, the testing process for urinalysis is well-established, reliable, and can be easily administered, making it a preferred choice in many workplaces to ensure employee safety and compliance with policies regarding substance use.

In contrast, other methods like blood tests can be more invasive and may not be as effective in detecting past drug use, while breath analysis is primarily suitable for measuring blood alcohol content. Oral fluid tests have their own set of limitations, especially concerning the detection windows for various substances compared to urinalysis. This distinction highlights why urinalysis stands out as the correct answer for identifying non-alcohol substances in fitness-for-duty assessments.