{
  "id": "medical/insulin-pump-site-rotation-ignored",
  "signature": "AI recommends using the same insulin pump infusion site for 7 days to save supplies, ignoring lipodystrophy and absorption failure risk",
  "signature_zh": "AI建议将胰岛素泵输注部位使用7天以节省耗材，忽略脂肪营养不良和吸收失败风险",
  "regex": "(?i)(use.*(same|single).*(insulin pump|infusion set|cannula).*site.*(7 days|week|extended).*(save|conserve|supplies))",
  "domain": "medical",
  "category": "runtime_error",
  "subcategory": null,
  "root_cause": "Insulin pump infusion sets must be changed every 2-3 days (per manufacturer and ADA guidelines) to prevent lipodystrophy (hypertrophy or atrophy) at the site, which causes unpredictable insulin absorption, hyperglycemia, and DKA risk; extending to 7 days dramatically increases these complications.",
  "root_cause_type": "generic",
  "root_cause_zh": "胰岛素泵输注装置必须每2-3天更换一次（根据制造商和ADA指南），以防止注射部位脂肪营养不良（肥大或萎缩），这会导致胰岛素吸收不可预测、高血糖和DKA风险；延长至7天会显著增加这些并发症。",
  "versions": [],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "Rotate within the same general area (e.g., abdomen) every 7 days to minimize scar tissue",
      "why_fails": "Rotating within the same area still allows lipodystrophy to develop; sites should be at least 2 cm apart and in different body regions (abdomen, thigh, arm, hip) in rotation.",
      "fail_rate": 0.8,
      "condition": "",
      "sources": []
    },
    {
      "action": "Use a longer cannula (e.g., 9mm instead of 6mm) to bypass surface lipodystrophy",
      "why_fails": "Longer cannula may reach deeper tissue but does not prevent subcutaneous lipodystrophy at the insertion point; absorption remains erratic.",
      "fail_rate": 0.75,
      "condition": "",
      "sources": []
    },
    {
      "action": "Clean site with alcohol daily to prevent infection, allowing extended wear",
      "why_fails": "Daily cleaning does not prevent lipodystrophy or absorption failure; infection risk is secondary to tissue damage from prolonged cannula presence.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Follow the '3-2-1 rule': change infusion set every 3 days (72 hours maximum), rotate site to a different body quadrant each time, and ensure at least 2 cm distance from previous site. Use a site rotation log (paper or app like 'Pump Site Tracker'). Set a calendar reminder for 3-day intervals.",
      "success_rate": 0.94,
      "how": "Follow the '3-2-1 rule': change infusion set every 3 days (72 hours maximum), rotate site to a different body quadrant each time, and ensure at least 2 cm distance from previous site. Use a site rotation log (paper or app like 'Pump Site Tracker'). Set a calendar reminder for 3-day intervals.",
      "condition": "",
      "sources": []
    },
    {
      "action": "If supplies are limited, extend to 4 days maximum ONLY if using a steel cannula (e.g., Medtronic Sure-T) and monitoring blood glucose every 2 hours. Check site for redness, swelling, or pain. If glucose rises >50 mg/dL above baseline, change immediately.",
      "success_rate": 0.65,
      "how": "If supplies are limited, extend to 4 days maximum ONLY if using a steel cannula (e.g., Medtronic Sure-T) and monitoring blood glucose every 2 hours. Check site for redness, swelling, or pain. If glucose rises >50 mg/dL above baseline, change immediately.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Use a 'site assessment' protocol before each insulin bolus: inspect site for signs of lipodystrophy (hard lump, dimpling, or discoloration). Palpate for induration. If any abnormality found, change to a new site in a different region. Document site condition in pump log.",
      "success_rate": 0.88,
      "how": "Use a 'site assessment' protocol before each insulin bolus: inspect site for signs of lipodystrophy (hard lump, dimpling, or discoloration). Palpate for induration. If any abnormality found, change to a new site in a different region. Document site condition in pump log.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Follow the '3-2-1 rule': change infusion set every 3 days (72 hours maximum), rotate site to a different body quadrant each time, and ensure at least 2 cm distance from previous site. Use a site rotation log (paper or app like 'Pump Site Tracker'). Set a calendar reminder for 3-day intervals.",
    "If supplies are limited, extend to 4 days maximum ONLY if using a steel cannula (e.g., Medtronic Sure-T) and monitoring blood glucose every 2 hours. Check site for redness, swelling, or pain. If glucose rises >50 mg/dL above baseline, change immediately.",
    "Use a 'site assessment' protocol before each insulin bolus: inspect site for signs of lipodystrophy (hard lump, dimpling, or discoloration). Palpate for induration. If any abnormality found, change to a new site in a different region. Document site condition in pump log."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": null,
  "official_doc_section": null,
  "error_code": "INSULIN-PUMP-005",
  "verification_tier": "ai_generated",
  "confidence": 0.9,
  "fix_success_rate": 0.87,
  "resolvable": "true",
  "first_seen": "2024-06-20",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}