Clinical applications work with the record of the patient whose name is displayed in the heading at the top of the CAS window. See Options for Selecting a Patient.
By default, the patient list displayed in Provider Order Entry for clinical workstations is the census for the care unit where the device is located. If you pull up the patient by selecting from a patient list, you can display that patient list by clicking the Selected Patient List option in the upper left. See Looking Up a Patient Using a Patient List.
To create and manage MGH patient lists, use the Partners Enterprise Patient Lists (PEPL) application. You can access PEPL by clicking the blue PEPL button on the left side of the CAS. For an overview and detailed instructions, see Help for PEPL.