Cardiff paramedic on 'bread and butter' call
A new system for dealing with 999 calls for ambulances in Wales has come into force.
Emergency response time targets will be scrapped for all but life-threatening cases during the one year trial.
Each call will now be graded and it is estimated that 10% of the 420,000 ambulance emergencies a year will be coded "red" for the most critical.
Managers say it will help prioritise life-threatening cases more effectively.
BBC Wales health correspondent Owain Clarke followed paramedic Geoff Lane on an emergency call to Roath in Cardiff, where elderly patient Ken has chest pains.
It turns out he has a chest infection but Geoff believes arriving at the call within eight minutes made little difference to his treatment.