If attempting DSD, having two providers each push “shock” on both defibrillators ensures a slightly delayed administration of the shocks in sequential fashion.If attempting DSiD, having one provider push “shock” on both defibrillators decreases the chances for delay and optimizes the probability of simultaneous administration.Defibrillator pads should NEVER be touching! The electrical discharge from one defibrillator may revert back into the second, causing both to no longer be functional!.If ventricular fibrillation is noted on the second pulse check, obtain a second defibrillator early so it is ready to use on the third pulse check, if needed.Multiple Vector Theory: This proposed theory suggests that more pads increase the number of vectors that the electricity can use to reach the myocardium.It is also the more likely method of administration in clinical setting. 8,18 This is where DD gets its alternate name of “Double Sequential Defibrillation (DSD)”.
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