"Passed out before or after hitting the ground?"

"Before."

"Any history of heart trouble, seizures, or fainting? Medications?"

"Not that I know of," I said.

He pulled on gloves and prepared some large gauze pads; removing the handkerchief, the EMT took a quick look before he put the pads over it. "Hold pressure here," he said. He put on a blood pressure cuff and took her pulse. I heard a siren as the ambulance pulled into the lot; the security people moved others back so it could park near us. "Female, early twenties, sudden onset unconsciousness followed by head trauma. BP one hundred over sixty-four, pulse seventy-two, no known conditions...