This testimony is from Michael Proctor of Elisha's Request Ministries in Washington:

Greg, a man on our ministry team (healing rooms director in Bremerton), had been ministering to an unsaved man who had been in the hospital. Greg arrived at the man's room in a rehab center, and the man was not in his bed.  At 5 p.m. the man was found breathless and pulseless (no vital signs) in the restroom. They pulled him into the room where the staff verified no signs of life. Paramedics arrived at 5:15 (brain death/damage occurs within about 5 minutes with no vital signs) and began resuscitation efforts, with little hope of success. Greg prayed as he followed the ambulance to the hospital. Forty minutes had passed since the man had been clinically dead, when suddenly he opened his eyes, fully awake and coherent! Greg was able to go to his room where he was admitted to the hospital and led him to the Lord. The man went home to heaven later that night.