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← ScienceWhich risk increases when a defibrillator's capacitance degrades?
A)Reduced delivered energy to myocardium✓
B)Increased electrode-skin impedance
C)Prolonged ventricular repolarization duration
D)Elevated pacing threshold afterwards
💡 Explanation
Capacitance degradation reduces stored charge, therefore delivered energy reduces to the heart due to lower effective charge during defibrillation via *capacitive discharge*, rather than changing impedance which affect conduction differently.
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