There is a selection of complications that may arise with AED treatment. Several of these are: • Failure to identify shockable arrhythmia. • Not administering a defibrillation shock in the presence of VF (ventricular fibrillation) or pulseless VT (ventricular tachycardia) can have devastating consequences, potentially leading to fatality or permanent damage. • Defibrillation or post-shock dysfunction can occur due to improper energy levels. • Myocardial damage. • Fire hazard in the presence of high oxygen concentration or flammable anaesthetic agents. • The incorrect administration of a pulse-sustaining rhythm may lead to ventricular fibrillation or even cardiac arrest. • Bystander shock from patient contact during defibrillation shock. • Interaction with pacemakers. • Skin burns around the defibrillation pads placement area. • Suffering from allergic dermatitis due to an adverse reaction to the materials used to manufacture defibrillation pads.