[Basal and stimulated plasma antidiuretic activity of patients with hemorrhagic fever with renal syndrome].

A basal value of antidiuretic activity (ADA) of the plasma was determined in 79 HFRS patients and stimulated activity using the insulin tolerance test in 24 persons. A decrease in the plasma ADA was observed in the acute period of disease. The insulin tolerance test did not cause a statistically significant increment of the plasma ADA in the HFRS patients.