[Changes in the concentration of sodium and potassium ions in the blood and gastrocnemius muscle in hyperoxia].

Concentration of K+, Na+ in the blood serum and musculus gastrocnemius of white rats of the Wistar line was studied at hyperoxibaria of 0.191 and 0.392 MPa. The period of the static hyperbaric oxygenation in the first case lasted for 40 min, in the second--for 20 min. The total time of dynamic and static oxygenation was 60 min. It is shown that higher concentration of K+ in the blood serum and its lower concentration in the musculus gastrocnemius have been revealed in the case of higher hyperoxibaria. Concentration of Na+ in the muscle increased. Reasons of changes observed are analyzed.