To update a member's physiological information in the Aviation Resource Management System (ARMS), you should use which window?

The correct choice is identified as the Flyer Availability window. This window is specifically designed to manage and update the status and physiological information of members, ensuring that their availability for flight duties reflects their current health and fitness for flying. This information is critical in maintaining operational safety and compliance with regulations regarding aircrew members' medical qualifications.

The other options are not focused on updating physiological information.

The Medical Records window typically contains broader health records and might not be directly used for updating the specific physiological information desired for flight status. The Flight Status window usually displays real-time information regarding a member's flying schedule and current missions rather than personal health data. The Profile Management window is generally intended for general personal information updates and not primarily for physiological data relevant to flight eligibility.

In summary, the Flyer Availability window serves the specific function of enabling updates regarding a member’s fitness, thereby supporting the operational integrity of the aviation unit.