What must be done every time the casualty is moved?

Reassessing all interventions after moving a casualty is crucial for ensuring that the treatment remains effective and appropriate given the changes in circumstances. When a casualty is moved, their condition could change due to numerous factors, such as altered blood flow, movement of an injury, or shifts in the airway.

Reassessment allows the medic to evaluate the effectiveness of previously implemented interventions, such as bleeding control, airway management, and pain management. It provides an opportunity to identify any new injuries or complications that may have arisen during the movement and ensures that necessary adjustments to the treatment plan can be made promptly. This systematic approach is fundamental in maintaining an accurate understanding of the casualty's evolving medical status and ensuring optimal care throughout the continuum of treatment.

Other options may seem relevant but do not capture the comprehensive scope of the reassessment necessary after each movement of the casualty. For instance, while checking vitals can be significant, it does not encompass the complete assessment of all interventions. Administering pain medication may not always be appropriate immediately following a move, and changing the casualty's position might not align with the goals of maintaining stability and preventing further injury. Each of these elements is part of representing an overall approach, but reassessing all interventions encapsulates the needed thoroughness for