Selena was dead on arrival at Corpus Christi Memorial Hospital. The attending emergency room physician decided to attempt to revive her. Cardiologist Louis Elkins continued the treatment and performed surgery based on the emergency room physician's decision. Doctors were able to establish an "erratic heartbeat" long enough to transfer her to the trauma room. After 50 minutes of surgery, she was pronounced dead from blood loss and cardiac arrest at 1:05 p.m. (CST). An autopsy was performed on the same day due to overwhelming media interest. It revealed that the bullet had entered Selena's upper right back, near her shoulder blade, passed through her chest cavity, severed the right subclavian artery, and exited her right upper chest.