DEFIB_PAD_IMPEDANCE medical runtime_error ai_generated true

AI instructs to use AED pads or defibrillator paddles without conductive gel or with improper placement on hairy chest

ID: medical/defibrillator-paddle-gel-omission

Also available as: JSON · Markdown · 中文
91%Fix Rate
86%Confidence
1Evidence
2024-03-15First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
aed_firmware_3.2 active — — —
defibrillator_model_Zoll_X_Series active — — —
aed_training_manual_2024 active — — —

Root Cause

Dry skin or air gaps between electrode and skin dramatically increase impedance, causing burns, ineffective shock delivery, and failure to defibrillate.

generic

中文

干燥皮肤或电极与皮肤之间的空气间隙会显著增加阻抗，导致烧伤、电击无效以及除颤失败。

Official Documentation

https://www.resus.org.uk/library/defibrillation-guidelines

Workarounds

  1. 95% success Before applying AED pads: shave chest hair if present using the razor in AED kit, dry skin with towel, then apply pads firmly. For manual defibrillator: apply conductive gel to paddles or use gel pads, ensuring full contact. 
    Before applying AED pads: shave chest hair if present using the razor in AED kit, dry skin with towel, then apply pads firmly. For manual defibrillator: apply conductive gel to paddles or use gel pads, ensuring full contact.
  2. 88% success Use pediatric pads for children under 8 or 25 kg; if unavailable, use adult pads placed anterior-posterior. Code example for impedance check: `if impedance > 150 ohms: reapply pads with gel; else: deliver shock` 
    Use pediatric pads for children under 8 or 25 kg; if unavailable, use adult pads placed anterior-posterior. Code example for impedance check: `if impedance > 150 ohms: reapply pads with gel; else: deliver shock`

中文步骤

  1. Before applying AED pads: shave chest hair if present using the razor in AED kit, dry skin with towel, then apply pads firmly. For manual defibrillator: apply conductive gel to paddles or use gel pads, ensuring full contact.
  2. Use pediatric pads for children under 8 or 25 kg; if unavailable, use adult pads placed anterior-posterior. Code example for impedance check: `if impedance > 150 ohms: reapply pads with gel; else: deliver shock`

Dead Ends

Common approaches that don't work:

  1. 70% fail

    User thinks gel is optional because modern AED pads are 'self-adhesive' and pre-gelled; but if skin is dry or hairy, adhesion fails

  2. 65% fail

    User places pads over clothing or chest hair thinking it will still conduct