Jeremy Vine has been hailed for helping save a man's life after a listener remembered his tips on spotting the early signs of a heart attack.
It came after Mary Long-Dhonau had been listening to the 57-year-old broadcaster interview Dr Sarah Jarvis on his radio show.
During the segment, Dr Sarah spoke about the importance of acting quickly in a medical emergency.
Less than an hour later, 52-year-old Mary was setting up for the Flood and Coast conference at the Telford International Centre on Monday (June 6) with her colleague Dave.
She noticed Dave suddenly felt faint and remembered the advice from Jeremy's BBC Radio 2 show.
After getting Dave to list his symptoms, Mary became convinced he was having a heart attack so immediately asked another exhibitor to call an ambulance.
Dave was rushed to hospital where doctors confirmed he had suffered a heart attack.
He then underwent surgery to have three stents fitted with a further two planned.
Mary, who was awarded an OBE for her services to combat flooding, said: "Dave was helping set up the display, which is quite a complex procedure, when he said, 'I feel faint'.
"I said, you're not having a heart attack are you, because that is one of the symptoms? He was saying 'don't be so stupid'.
"He would not have it that he was having a heart attack. He thought at one point I was overreacting.
"He told me he would go to the doctor in the morning but he became clammy, weary and began to suffer chest pain."
She continued: "I had just listened to Jeremy Vine and I knew it was a heart attack. If we had not been listening I would not have known all the symptoms."
Mark Arrowsmith, who was setting up a display for Watertight international, then called an ambulance.
Mary from Herefordshire added: "The ambulance probably saved his life.
"Dave has since thanked those who helped him after coming out of theatre, telling her he had had three stents fitted and was having two more."
Mary went on to thank Jeremy on Twitter, where he responded: "Incredible."
Dr Sarah Jarvis also tweeted: "Obviously I wouldn't wish a heart attack on anyone but how amazing that you were there, knew the signs to look out for after my discussion with Jeremy Vine and were able to get them emergency help. Rapid action saves lives - well done you!"
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