University Hospital Limerick (UHL) is the Model 4 hospital for the region. It is where all critical care services are located in addition to a 24/7/365 Emergency Department and it is a designated cancer centre.University Hospital Limerick (UHL) is the Model 4 hospital for the region. It is where all critical care services are located in addition to a 24/7/365 Emergency Department and it is a designated cancer centre.