Aim: To calculate parameters of replacement in which the amount of total protein (TP) in the circulating blood remains above critical level after removal of 17-75% of circulating plasm volume (CPL).
Material And Methods: Therapeutic plasmapheresis (TPA) was made in 96 patients with rheumatoid arthritis, bronchial asthma, systemic lupus erythematosus and other diseases. The plasm was replaced by 0.