Which of the following substances can be detected through urine tests that evaluate metabolites?

The presence of all listed substances can be detected through urine tests that evaluate metabolites, making the comprehensive option the correct choice.

Urine tests are commonly used in substance abuse screening due to their effectiveness in identifying the metabolites produced by the body after it processes these substances. Alcohol, while primarily detected through breathalyzer tests, can still be found in urine for a limited time after ingestion.

PCP (phencyclidine) has specific metabolites that can be detected in urine for several days after use, depending on the dose and individual metabolism.

Heroin, upon metabolism, converts into morphine and other metabolites, which can also be identified in urine tests.

The ability to detect various substances and their metabolites underscores the utility of urine testing in monitoring substance use and providing necessary interventions. Each of these substances has identifiable byproducts that are measurable in urine samples, confirming that all the options are indeed detectable through this method.