The automated physiologic profile provides the critical care physician with hemodynamic, oxygen consumption and tissue utilization data at reasonable cost. A paramedical assistant performs all data acquisition, recordings and blood sampling procedures. Data reduction is performed through use of off-the-shelf desk-top calculator equipment and accessories and a standardized graphic display is provided for the physician in charge. The physiologic profile has been utilized in high-risk patients requiring medical and surgical interventions. It is routinely employed in postoperative monitoring of cardiac patients and patients undergoing major surgical procedures with associated cardiovascular decompensation. Diagnosis of cardiac and pulmonary deterioration and promptness of advanced support interventions represent additional areas of effective clinical application.