Artificial blood substitutes

Investigations directed toward the development of an effective artificial blood substitute are continuing as concerns remain regarding the safety and adequacy of the nation's blood supply. Perfluorochemical compounds, modified hemoglobin solutions, and microencapsulated hemoglobin represent the major areas of research. If a successful red cell substitute can be developed, many problems inherent in current blood transfusion practices could be alleviated, particularly in emergency situations.