First responders say if she did not perform CPR before first responders arrived, the man may not have survived.

St. Paul Police say there were at least 5 overdoses in just 36 hours this week.

Firefighters say a delivery driver saved a man who overdosed this week.

On a busy Dale Street in St. Paul Tuesday afternoon. Dominoes delivery driver Kesley Kadlec was just trying to find her next customer.

"Pulled onto a side street and that's when it all happened," said Kadlec. "Gentleman slumped over. Could tell he was in distress."

A man overdosed and Kesley then remembered her CPR training from two decades ago.

"Hadn't needed it until Tuesday," said Kadlec. "Just began chest compressions and continued that until first responders arrived."

Firefighter Joseph Simser was one of the first firefighters on scene. They administered the overdose drug Narcan.

"Transported him to Regions and he was talking to us by the time we got there," said Simser.

Firefighters say it was the first-first responder that kept him alive.

"One of the first responders did come over and say I wanted you to know that you brought him back and without your efforts he wouldn't have survived," said Kadlec.

"She stopped and she provided and did something that potentially saved a life. So thank you," said Simser.

"To me that's what we do as human beings. We help one another," said Kadlec.

Kesley is just grateful she was in the right place at the right time.

"Mostly thankful he's okay and I can be the one to make sure he has a lot more days left of his life," said Kadlec. "Thank god I took that class."

Firefighters say this should raise awareness of the importance of knowing how to perform CPR.