Major emergency departments are defined as a consultant led service with resuscitation facilities and accommodation for the reception of emergency department patients.
Diffinnir Adrannau Damweiniau ac Achosion Brys Mawr fel gwasanaeth dan arweiniad meddygon ymgynghorol gyda chyfleusterau dadebru a llety ar gyfer derbyn cleifion Damweiniau ac Achosion Brys.