Did Shannon Have the Right to Pull the Plug on Gary?

Gary Coleman and Shannon Price were divorced in 2008. Did she have the right to make the decision to terminate his life?
Shortly after Gary Coleman slipped into a coma after smashing his head or getting his head smashed, his ex- wife Shannon Price made the decision to remove him from life support, but was it her call to make?
It was according to the hospital.
The Utah Valley Regional Medical Center released a statement saying Gar signed an "Advanced Health Care Directive that granted Shannon Price permission to make medical decisions on his behalf if he was unable to do so."