ausrere
Pattern Altitude
But they quoted pax as saying they had no idea until after landing.
The AP story I read first said that when there was an announcement by the crew asking if there were any Doctors on board, that several passengers approached the cockpit as the doctor was rendering aid. I would have thought that kind of news would have spread like lightening down the isles. But I'll bet it was picked up over the radio either by, or passed on to the media.
I've seen plenty of times when they would beat first responders to a interesting call that they heard over the radio.