A decision support device incorporates a number of user friendly features. The device is operable to determine context by displaying a flow diagram of a clinical guideline so the clinician can select the current step in treatment (S 630 ). Initial, automatic display of decision support data can be restricted to clinical data only (S 420 ). Data pertinent to the current decision, and therefore automatically selected for display, can be highlighted (S 340 ) when appearing in screens subsequently brought up by the clinician.