{
  "id": "emergency/epinephrine-injection-site",
  "signature": "AI tells anaphylaxis patient to inject epinephrine into the upper arm or buttock, but the thigh muscle (vastus lateralis) is the recommended site for self-injection",
  "signature_zh": "AI告诉过敏反应患者将肾上腺素注射到上臂或臀部，但大腿肌肉（股外侧肌）是自我注射的推荐部位",
  "regex": "inject epinephrine into upper arm|epinephrine buttock|auto-injector arm site",
  "domain": "emergency",
  "category": "life_safety",
  "subcategory": null,
  "root_cause": "The AI incorrectly recommends injection sites based on common vaccine administration (deltoid) or outdated first-aid advice, ignoring that the thigh provides faster absorption and is easier for self-injection.",
  "root_cause_type": "generic",
  "root_cause_zh": "AI基于常见疫苗注射（三角肌）或过时的急救建议错误推荐注射部位，忽略了股外侧肌吸收更快且更适合自我注射。",
  "versions": [],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "User injects into deltoid (upper arm), but muscle is too small; may hit bone or subcutaneous tissue, delaying absorption.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "User injects into buttock, but the gluteal muscle is not recommended due to risk of sciatic nerve damage and slower absorption via fat layers.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "User attempts to inject into thigh but misses the vastus lateralis (outer thigh), injecting into quadriceps which is acceptable but less ideal.",
      "fail_rate": 0.5,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "For EpiPen or generic auto-injector, remove safety cap, place orange tip against outer thigh (mid-anterior lateral aspect), and push firmly until click. Hold for 3 seconds. Example: 'Inject into the outer middle third of the thigh.'",
      "success_rate": 0.95,
      "how": "For EpiPen or generic auto-injector, remove safety cap, place orange tip against outer thigh (mid-anterior lateral aspect), and push firmly until click. Hold for 3 seconds. Example: 'Inject into the outer middle third of the thigh.'",
      "condition": "",
      "sources": []
    },
    {
      "action": "If no auto-injector, use a manual syringe with 1-inch needle for adults (shorter for children). Inject at 90-degree angle into vastus lateralis muscle (outer thigh).",
      "success_rate": 0.85,
      "how": "If no auto-injector, use a manual syringe with 1-inch needle for adults (shorter for children). Inject at 90-degree angle into vastus lateralis muscle (outer thigh).",
      "condition": "",
      "sources": []
    },
    {
      "action": "Practice with trainer devices (e.g., EpiPen trainer) to locate the correct site; inject into a foam pad simulating thigh to build muscle memory.",
      "success_rate": 0.9,
      "how": "Practice with trainer devices (e.g., EpiPen trainer) to locate the correct site; inject into a foam pad simulating thigh to build muscle memory.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "For EpiPen or generic auto-injector, remove safety cap, place orange tip against outer thigh (mid-anterior lateral aspect), and push firmly until click. Hold for 3 seconds. Example: 'Inject into the outer middle third of the thigh.'",
    "If no auto-injector, use a manual syringe with 1-inch needle for adults (shorter for children). Inject at 90-degree angle into vastus lateralis muscle (outer thigh).",
    "Practice with trainer devices (e.g., EpiPen trainer) to locate the correct site; inject into a foam pad simulating thigh to build muscle memory."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.aaaai.org/conditions-treatments/drug-guide/epinephrine",
  "official_doc_section": null,
  "error_code": "EPI-INJECT-ERR-005",
  "verification_tier": "ai_generated",
  "confidence": 0.87,
  "fix_success_rate": 0.92,
  "resolvable": "true",
  "first_seen": "2024-02-10",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}