* 1 Use of drugs with sedative action (benzodiazepines, barbiturates, etc.) is shown to all patients, except patients with a fluid lungs, heavy hypotension and being unconscious.
* 2 When using defibrillators with a bipolar impulse of a dose of energy decrease approximately twice.
* 3 and. After each category repeated synchronization of an impulse is carried out.
. Not synchronized cardioversion is carried out if: the monomorphic ventricular tachycardia (VT) with ChSS more than 160 in a minute or with the wide deformed QRS complexes; polymorphic ventricular tachycardia; patients are in a critical condition, and synchronization is late or there is no synchronizer.