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Factors affecting transthoracic resistance

Authoring team

Factors changing transthoracic resistance and hence effectiveness of defibrillation include:

  • delivered energy
  • interface between electrode and skin - gels improve conduction
  • number of, and time between, discharges
  • electrode pressure - use about 11 kg or 25 pounds
  • phase of patient ventilation - best on full inspiration

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