You can use alternative terminology to describe the people served through the application. Whether it's for patients, residents or otherwise, the term you choose will apply throughout the platform.
The same concept applies to your playbooks and protocols: you can call them whatever makes sense to your team.
You can make these changes by clicking:
Configuration
General Settings
Subject (or Playbook, or Protocol) - alternative terminology
To see the other customizable elements, read the article on personalizing the interface.