Obtaining a target location of a user associated with a body worn device (50) that receiving information related to a condition of user and communicates an indication of the condition to a server (12) over a network (24). The method including: providing a network (24) formed of a plurality of lighting units (42, 32) and a database (22) for maintaining information describing a geographic location of each of the plurality of lighting units, each lighting unit transmitting a unique identifier; providing the body worn device with a lighting unit identifier sensor (52), the sensor receiving lighting unit identifiers of at least one of the plurality of lighting units; the body worn device communicating the received lighting unit identifiers with the indication in a message to the server via the network; and the database providing a geographic location of the one or more lighting units, the geographic location corresponding to the target location of the body worn device.