{
  "id": "medical/confusing-hemoglobin-a1c-with-blood-glucose-level",
  "signature": "AI interprets a hemoglobin A1c of 6.5% as equivalent to a blood glucose of 65 mg/dL, leading to incorrect diabetes management recommendations",
  "signature_zh": "AI将6.5%的糖化血红蛋白解读为相当于65 mg/dL的血糖，导致错误的糖尿病管理建议",
  "regex": "(?i)(hemoglobin A1c|HbA1c|A1c).*(is|equals|=).*(mg/dL|glucose|blood sugar).*\\d{2,3}",
  "domain": "medical",
  "category": "data_error",
  "subcategory": null,
  "root_cause": "Hemoglobin A1c is a percentage reflecting average blood glucose over 2-3 months, not a direct glucose measurement; an A1c of 6.5% corresponds to an estimated average glucose (eAG) of approximately 140 mg/dL, not 65 mg/dL.",
  "root_cause_type": "generic",
  "root_cause_zh": "糖化血红蛋白是一个百分比，反映过去2-3个月的平均血糖水平，而非直接血糖测量值；6.5%的A1c对应估计平均血糖（eAG）约为140 mg/dL，而非65 mg/dL。",
  "versions": [
    {
      "version": "ADA Standards of Medical Care in Diabetes 2024",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "NGSP A1c-Derived Average Glucose (ADAG) Study",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "The relationship is nonlinear and described by the formula: eAG (mg/dL) = 28.7 × A1c - 46.7, so 7% = 154 mg/dL.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Only the ADAG study formula is validated; other charts may use outdated or incorrect conversions.",
      "fail_rate": 0.7,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Fructosamine is measured in μmol/L, not a percentage, and its relationship to glucose is different.",
      "fail_rate": 0.6,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Implement a lookup table or formula in the AI system: eAG (mg/dL) = 28.7 × A1c - 46.7, and display both values together to avoid confusion.",
      "success_rate": 0.95,
      "how": "Implement a lookup table or formula in the AI system: eAG (mg/dL) = 28.7 × A1c - 46.7, and display both values together to avoid confusion.",
      "condition": "",
      "sources": []
    },
    {
      "action": "When generating clinical recommendations, always present A1c as a percentage and explicitly state the eAG in parentheses, e.g., 'A1c 6.5% (eAG 140 mg/dL)'.",
      "success_rate": 0.9,
      "how": "When generating clinical recommendations, always present A1c as a percentage and explicitly state the eAG in parentheses, e.g., 'A1c 6.5% (eAG 140 mg/dL)'.",
      "condition": "",
      "sources": []
    },
    {
      "action": "Add a validation step that checks if any numerical output from the AI is implausible (e.g., an A1c of 6.5% should never produce a glucose value below 100 mg/dL) and flags it for review.",
      "success_rate": 0.85,
      "how": "Add a validation step that checks if any numerical output from the AI is implausible (e.g., an A1c of 6.5% should never produce a glucose value below 100 mg/dL) and flags it for review.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Implement a lookup table or formula in the AI system: eAG (mg/dL) = 28.7 × A1c - 46.7, and display both values together to avoid confusion.",
    "When generating clinical recommendations, always present A1c as a percentage and explicitly state the eAG in parentheses, e.g., 'A1c 6.5% (eAG 140 mg/dL)'.",
    "Add a validation step that checks if any numerical output from the AI is implausible (e.g., an A1c of 6.5% should never produce a glucose value below 100 mg/dL) and flags it for review."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://professional.diabetes.org/quick-guides/translate-a1c",
  "official_doc_section": null,
  "error_code": "LAB-VALUE-A1C-MISINTERPRETATION",
  "verification_tier": "ai_generated",
  "confidence": 0.86,
  "fix_success_rate": 0.88,
  "resolvable": "true",
  "first_seen": "2024-07-14",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}