I've seen referenced in literature the need to have a "break glass" mode in Healthcare IT applications. In this mode, the access controls in an application can be bypassed for an emergency when it is critical for a user to gain access to imaging data. Typically, the facility will have some sort of policy in place to justify using the mode after the fact.
I'm wondering if many facilities are demanding this feature in heathcare applications? I don't recall seeing this in many real applications.