Final answer:
The correct statement about an employee's rights regarding substance abuse is that employers must keep the results of a drug screen confidential if they show prescription drug use.
Step-by-step explanation:
The correct statement regarding an employee's rights related to substance abuse is that if the results of a pre-employment drug screen reveal use of prescription drugs, the employer must treat this as confidential information. Individuals who currently use illegal drugs are not protected by the Americans with Disabilities Act (ADA). The ADA protects individuals with alcoholism and provides that employers must make reasonable accommodations for employees with disabilities. Additionally, employers are permitted to use the results of a pre-employment drug screen in their hiring decisions as long as they do not discriminate against individuals with a disability, as defined by the ADA, including those who are recovering or have recovered from substance abuse.