{
  "id": "emergency/choking-pregnant-hestlich-thrusts",
  "signature": "AI tells user to perform abdominal thrusts (Heimlich) on a pregnant or obese choking victim, but chest thrusts are recommended to avoid fetal injury or abdominal damage",
  "signature_zh": "AI告诉用户对孕妇或肥胖窒息者进行腹部冲击（海姆立克法），但推荐胸部冲击以避免胎儿损伤或腹部损伤",
  "regex": "(?:pregnant|obese|pregnancy|overweight).*(?:heimlich|abdominal|thrust|choking)",
  "domain": "emergency",
  "category": "life_safety",
  "subcategory": null,
  "root_cause": "The AI fails to differentiate standard choking rescue from special populations; 2020 AHA and 2021 Red Cross guidelines explicitly state that abdominal thrusts on a pregnant woman (≥20 weeks) or obese person may cause uterine rupture, placental abruption, or internal organ damage, and chest thrusts should be used instead.",
  "root_cause_type": "generic",
  "root_cause_zh": "AI未能区分标准窒息救援与特殊人群；2020年AHA和2021年红十字会指南明确指出对孕妇（≥20周）或肥胖者进行腹部冲击可能导致子宫破裂、胎盘早剥或内脏损伤，应改用胸部冲击。",
  "versions": [
    {
      "version": "AHA Guidelines for CPR and ECC 2020",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "American Red Cross First Aid 2021",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "European Resuscitation Council Guidelines 2021",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Performing abdominal thrusts on a pregnant woman can cause uterine rupture, especially in third trimester; risk of fetal hypoxia from decreased placental blood flow",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Using back blows on a pregnant choking victim may be ineffective and cause harm; chest thrusts are preferred as they avoid the gravid uterus",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Attempting finger sweeps in the mouth without visualization can push object deeper into airway",
      "fail_rate": 0.4,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "For pregnant or obese choking victim: stand behind them, place fist in middle of sternum (breastbone), grab fist with other hand, perform quick inward thrusts. Repeat until object is dislodged or victim becomes unconscious. Example command: 'Position your fist on the center of the chest, just above the xiphoid process, and thrust inward with force.'",
      "success_rate": 0.9,
      "how": "For pregnant or obese choking victim: stand behind them, place fist in middle of sternum (breastbone), grab fist with other hand, perform quick inward thrusts. Repeat until object is dislodged or victim becomes unconscious. Example command: 'Position your fist on the center of the chest, just above the xiphoid process, and thrust inward with force.'",
      "condition": "",
      "sources": []
    },
    {
      "action": "If victim becomes unconscious: lower to ground, begin CPR (30 compressions at 2-2.4 inches depth), check mouth after each cycle for visible object. Do not perform blind finger sweeps.",
      "success_rate": 0.85,
      "how": "If victim becomes unconscious: lower to ground, begin CPR (30 compressions at 2-2.4 inches depth), check mouth after each cycle for visible object. Do not perform blind finger sweeps.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "For pregnant or obese choking victim: stand behind them, place fist in middle of sternum (breastbone), grab fist with other hand, perform quick inward thrusts. Repeat until object is dislodged or victim becomes unconscious. Example command: 'Position your fist on the center of the chest, just above the xiphoid process, and thrust inward with force.'",
    "If victim becomes unconscious: lower to ground, begin CPR (30 compressions at 2-2.4 inches depth), check mouth after each cycle for visible object. Do not perform blind finger sweeps."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://cpr.heart.org/-/media/CPR-Files/CPR-Guidelines/2020/Part-5-Adult-BLS.pdf",
  "official_doc_section": null,
  "error_code": "CHOKING-SPECIAL-ERR-002",
  "verification_tier": "ai_generated",
  "confidence": 0.88,
  "fix_success_rate": 0.85,
  "resolvable": "true",
  "first_seen": "2024-08-20",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}