“It made me kind of nervous because it was in the car,” Serenity told the Times Free Press. "She has had seizures before where I've taken care of her so I know what to do. She's my mom and I love her.”
On Friday, firefighters and paramedics honored Serenity with a blue ribbon certificate and a birthday cake.
“When responders arrived on scene, Serenity had taken control of the scene and really displayed some heroic actions,” Chattanooga Fire Department Chief Phil Hyman told the News Free Press. "Her mother was having a medical issue and they were right in the middle of an intersection, a dangerous intersection, and Serenity really snapped into action.
"She displayed just an inordinate amount of calmness during that entire event, like nothing was going on. Twelve-year-old Serenity is the kind of person we love to have in our community. She did an outstanding job."
Mothershead said she did not recall what happened when she had the seizure.
"We pulled up at the intersection and, of course, I ended up having a seizure and she put the car in park and kept me still and everything and called for help," she said. "To see her recognized like this is an amazing feeling.”