An interactive protocol system for a medical decision system includes a plurality of medical related information databases containing medical related information and rules, a patient information database including patient information, a medical practices database including information relating to medical practices, a questions database including questions to be presented to a user relating to medical care, and an answers database including answers related to the respective questions in said questions database. The medical practices database may include a plurality of protocols. Each of the plurality of protocols may include a different plurality of narrowing questions to be presented to the user. The questions may relate to at least one of the plurality of protocols and may be presented to the user based on the answers to the questions provided by the user. The narrowing questions in at least one of the plurality of protocols may be answered by the user to provide the user an indication relating to medical practices.