Final answer:
The statement is true. Revenue encompasses operating and nonoperating sources, and for healthcare organizations, patient services revenue is an example of operating revenue related to their core activities.
Step-by-step explanation:
The statement about revenue categories being operating and nonoperating revenue, where an example of operating revenue is patient services revenue, is true. Revenue is essentially the income that a company or organization receives from its business activities, such as sales of goods and services. Specifically, operating revenue is generated from the core business activities of an entity. In the context of a healthcare organization, patient services revenue represents the payments received for the services provided to the patients, which is undoubtedly an operating revenue since it is directly related to the primary activities of the healthcare facility.