Eyewitness Account From Marathon Medical Tent

Kim Giroux, a nurse from Tewksbury, Mass., was volunteering at a Boston Marathon medical tent at the time of the bombing.

"I was actually sitting in the medical tent, treating one of our returning war veterans who ran the race in full gear, with his fatigues, the backpack, boots, being treated for dehydration when the first blast went off,"  Giroux told Here & Now's Robin Young.

While Giroux had been trained for this situation, she had never seen wounds like these.

"There were penetrating wounds, people that were impaled with metal, glass. There were  burns, there were amputations, cardiac arrest, several children with injuries," she said. "We have had training,  but we never had real wounds. You know, you're training  has always been simulation, where you are told that this is what's coming in, but you never see it. Yesterday I saw it. I hope I never have to live through that again."

Giroux says she hasn't been able to sleep since the attack.

"I just kept waking up with visions of what I had seen yesterday," she said. "I had to turn the TV off because I kept seeing the face of those that came through that medical tent."