"We were just about to go through the doors," Nixon told KDKA-TV, "and then we heard somebody scream, 'Does anybody know CPR? Is anybody a doctor?'"
Nixon, a trauma nurse at UPMC Presbyterian Hospital, jumped into action.
"I looked over, and I think my nursing instincts took over," she said, "And I bolted over to the bench to see if she was all right."
Nixon said the woman was barely breathing when she arrived.
"I started compressions right away. They told me she didn't have a pulse," she said.
The newlywed nurse said the woman gradually started to recover.
"She was mumbling, finally, and she tried to get up," Nixon said. "And I just kind of like held her hand, and I tried to make sure she didn't fall."
"Never knew that would happen on my wedding night!" Nixon said.
"There's no time off," she told the Observer-Reporter newspaper.
Andrew Nixon said he was proud of his new bride.
"It was a heroic act, but I've known her for long enough, I'm not surprised at all," he said.
