What is one reason for completing toxicology tests on samples from living people?

Completing toxicology tests on samples from living individuals is essential primarily to assess whether someone is under the influence of drugs. This testing can detect and quantify the presence of various substances, which is crucial in various contexts, such as medical emergencies, occupational health assessments, or legal cases. By identifying if a person is impaired due to drug use, healthcare professionals can make informed decisions regarding treatment or intervention, and law enforcement can determine whether someone is fit to operate a vehicle or perform other tasks safely.

The presence of drugs can significantly impair a person's cognitive and motor functions, making it vital to address any immediate health concerns or public safety issues. Therefore, the focus of toxicology tests in this context is specifically related to evaluating the potential impairment caused by drug use.