Result: After ECT, red blood cell count increase (before 3.5±0.8 T / l, after 3.9±0.8 L / l), MCV decrease (before 103.95±8.61 fl, after 91.6±6.75 fl), MCH decrease (before 36.5±2.9 pg, after 31.9±3.1 pg); platelet decrease (before 282.0±101.4 G / L, after 158.1±81.1 G / l); potassium levels decreased (before 4.2±0.8 mmol / l, after 3.8±0, 7 mmol / l), sodium, chloride, glucose no significant changes.