The anguish families experience when they are asked to make health care decisions for incompetent members has stimulated the search for an adequate procedure to document patients' end-of-life decisions. This study explores a method of recording competent patients' wishes via a "value history," a questionnaire that can guide families and the health care team during an incompetent person's terminal illness. Questions addressed were these: Can a primary care physician gather information from competent patients about their care before they become incompetent? Can a nurse practitioner gather the information as efficiently as a physician? Do patients want this information recorded in their charts? and, Is the primary care office as well as the patient's home an appropriate location to obtain a value history? Four hundred patients were invited to record their wishes for future care. Patients expressed that they wanted to be told the truth about their health and their health care, and they wanted to participate in decision-making, even while dying. The majority did not want to be maintained indefinitely on life-support systems. Patient responses were similar regardless of whether the NP or physician conducted the interview. A primary care office or patient's home are both suitable for filling out the value history. Because of the enthusiastic patient responses, the authors recommend that value histories become a routine part of a patient's medical record.