What technique is recommended to check responsiveness in a spinal victim?

The recommended technique to check responsiveness in a spinal victim involves gentle tapping. This method is preferred because it minimizes any additional movement that could potentially exacerbate a spinal injury. Gentle tapping allows the responder to assess the victim's level of consciousness without applying force or causing further harm. It is crucial to approach spinal injuries with caution, as excessive physical manipulation or aggressive vocal encouragement might lead to unintended movements that can worsen the injury. This approach ensures the safety of the victim while still effectively checking for responsiveness.