When do we use a defibrillator?ā£
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1ļøā£ PULSELESS VENTRICULAR TACHYCARDIAā£
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2ļøā£ VENTRICULAR FIBRILLATIONā£
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With these 2 arrhythmias, the heart is not pumping effectively = brain and vital organs are not getting the blood/oxygen they need = death is imminentā£
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CPR will keep the blood flowing, but the defibrillator will restore the heartās normal rhythm. How? The defibrillator terminates abnormal electrical rhythm = allows the sinus node to resume normal pacemaker activity = normal electrical activity beginsā ā£
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MONOPHASIC VS. BIPHASICā£
Monophasic defibrillation = delivers a charge in only one directionā£
Biphasic defibrillation = delivers a charge in one direction for half of the shock and in the electrically opposite direction for the second halfā£
šš¼ delivers a more consistent magnitude of current and tends to successfully terminate arrhythmias at lower energies than monophasic waveform defibrillators
