Scheduled cardioversion.Covidien adult multi-function defibrillation patches were applied anterior/posterior to chest and back and connected to zoll defibrillator, after initial shock o f150 joules and unsuccessful cardioversion, staff noticed a faint burning smell and heard a pop.Pad placement and adherence were checked and agrees to be correctly placed and adhered.Second shock was delivered at 200 joules (cardioversion successful) with similar result of burning smell.After pads were removed, patient was found to have small burn marks on mid chest, none on the back.The prominent burn mark was approx.4 cm long.With several smaller marks scattered where the edge of the pad had been.Silvadene applied to area per physician order.Fda safety report # (b)(4).
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