Effect of chronic exposure to static magnetic field upon the K+, Na+ and chlorides concentrations in the serum of guinea pigs.

The magnetic field influence on the concentration of serum K+, Na+ and chlorides was tested. The guinea pigs were exposed to the static magnetic field for six weeks 1 hour a day, 7 days a week. Magnetic field of induction 0.005 T--0.3 T produced progressively an increase in Na+ concentration and a decrease in chlorides concentration in the serum. The range of observed changes was dependent on the duration of exposure to the magnetic field. No change in K+ serum concentration was observed following magnetic field exposure.