Is Imaging Warning information maintained historically?

Imaging Warning information is not preserved historically, which means that once the warning is no longer relevant, it is removed from the system and not archived for future reference. This approach can help streamline data management by ensuring that outdated warnings do not clutter the system or distract users from current information.

The other options suggest varying levels of retention, which do not align with how Imaging Warning information is actually handled within the system. For instance, preserving data indefinitely could lead to unnecessary data accumulation, and limiting retention to a month after a warning could still contribute to potential confusion with outdated information. Similarly, retaining only major changes does not reflect the actual protocol for how these warnings are managed.