The authors elaborate the most frequent causes of electroshock and consequences to the human body thereof. Recent advances in modern medical technology increase the hazard of the electroshock. Tissue burns, asphyxia, CNS destruction and ventricular fibrillation are possible consequences. Depending on the electric current strength, the organism may be a subject of either a macroshock or a microshock. The methods of microshock prevention in hospital environment are disclosed. Two patients are presented, being treated at the Institute of Anesthesiology and Intensive Care.