A calm and in control Kourtney Kardashian called 911 after her baby son Mason showed an allergic reaction to food.

You can listen to the 911 call right here on RadarOnline.com.

EXCLUSIVE PHOTOS: Kourtney & Baby Mason Rushed To Hospital

“I think my baby is allergic to something he just ate,” Kourtney said. “He seems fine right now but he has hives on his face and he threw up.”

RadarOnline.com was first to report that Kourtney called 911 and we showed exclusive video of paramedics taking mom and son to the hospital via ambulance.