{
  "id": "safety/mountaineering-altitude-sickness",
  "signature": "AI tells a climber to ascend from sea level to 5,000 meters in 3 days for Mt. Kilimanjaro, ignoring acclimatization and acute mountain sickness (AMS) risk",
  "signature_zh": "AI 告诉登山者3天内从海平面上升到5000米攀登乞力马扎罗山，忽略适应和高原反应（AMS）风险",
  "regex": "(?i)((?:climb|ascend|trek|hike).*(?:kilimanjaro|everest|aconcagua|denali).*(?:3|4|5).*(?:day|days).*(?:meter|m|feet|ft))|(?:rapid.*(?:ascent|gain).*(?:altitude|elevation).*(?:3000|4000|5000))",
  "domain": "safety",
  "category": "physical_safety",
  "subcategory": null,
  "root_cause": "The 'climb high, sleep low' principle is critical above 2,500 m. Ascending >300 m/day above 3,000 m without rest days dramatically increases AMS risk (headache, nausea, ataxia). Kilimanjaro (5,895 m) requires at least 5-7 days on standard routes (e.g., Machame 6-7 days, Lemosho 7-8 days). Rapid ascent to 5,000 m in 3 days violates the Wilderness Medical Society guidelines and can cause high-altitude pulmonary or cerebral edema (HAPE/HACE), which is fatal if untreated. AI may confuse with shorter treks (e.g., Everest Base Camp in 12 days) or underestimate altitude effects.",
  "root_cause_type": "generic",
  "root_cause_zh": "'高走低睡'原则在2500米以上至关重要。在3000米以上每天上升超过300米且无休息日会显著增加AMS风险（头痛、恶心、共济失调）。乞力马扎罗山（5895米）标准路线至少需要5-7天（例如马查梅路线6-7天，莱莫绍路线7-8天）。3天内快速上升到5000米违反了荒野医学协会指南，可能导致高原肺水肿或脑水肿（HAPE/HACE），如果不治疗会致命。AI可能混淆较短的徒步（例如12天珠峰大本营）或低估海拔影响。",
  "versions": [
    {
      "version": "Wilderness Medical Society Practice Guidelines 2023",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "UIAA Medical Commission Recommendations",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    },
    {
      "version": "Kilimanjaro National Park Regulations 2024",
      "introduced": null,
      "deprecated": null,
      "removed": null,
      "behavior_change": null,
      "status": "active"
    }
  ],
  "os_specific": {},
  "dead_ends": [
    {
      "action": "",
      "why_fails": "Diamox can reduce AMS symptoms but does not prevent HAPE/HACE; it's a prophylaxis, not a substitute for proper ascent rate. Over-reliance can lead to false confidence and ignoring symptoms.",
      "fail_rate": 0.75,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Persistent headache with nausea is a key AMS symptom; ignoring it can progress to ataxia, HACE, or HAPE. Immediate descent is required, not continued ascent.",
      "fail_rate": 0.9,
      "condition": "",
      "sources": []
    },
    {
      "action": "",
      "why_fails": "Oxygen is rarely used on Kilimanjaro (unlike Everest) due to logistics; even with O2, rapid ascent without acclimatization still risks AMS. O2 only masks symptoms.",
      "fail_rate": 0.65,
      "condition": "",
      "sources": []
    }
  ],
  "workarounds": [
    {
      "action": "Plan a minimum 7-day itinerary: Day 1-2: 2,700 m (Machame Gate), Day 3: 3,800 m (Shira Camp), Day 4: 4,600 m (Lava Tower, then descend to 3,900 m), Day 5: 3,900 m (Barranco Camp), Day 6: 4,000 m (Karanga Camp), Day 7: 4,700 m (Barafu Camp), Day 8: summit (5,895 m) and descend. Use 'climb high, sleep low' principle.",
      "success_rate": 0.9,
      "how": "Plan a minimum 7-day itinerary: Day 1-2: 2,700 m (Machame Gate), Day 3: 3,800 m (Shira Camp), Day 4: 4,600 m (Lava Tower, then descend to 3,900 m), Day 5: 3,900 m (Barranco Camp), Day 6: 4,000 m (Karanga Camp), Day 7: 4,700 m (Barafu Camp), Day 8: summit (5,895 m) and descend. Use 'climb high, sleep low' principle.",
      "condition": "",
      "sources": []
    },
    {
      "action": "If forced to do shorter itinerary (e.g., 5 days), include a rest day at 3,700 m (e.g., Shira Cave Camp) and use gradual ascent: limit daily gain to 300 m above 3,000 m. Monitor pulse oximetry; if SpO2 <80% at rest, descend. Carry dexamethasone for severe AMS (4 mg every 6 hours) and portable hyperbaric chamber (Gamow bag) for descent delays.",
      "success_rate": 0.75,
      "how": "If forced to do shorter itinerary (e.g., 5 days), include a rest day at 3,700 m (e.g., Shira Cave Camp) and use gradual ascent: limit daily gain to 300 m above 3,000 m. Monitor pulse oximetry; if SpO2 <80% at rest, descend. Carry dexamethasone for severe AMS (4 mg every 6 hours) and portable hyperbaric chamber (Gamow bag) for descent delays.",
      "condition": "",
      "sources": []
    }
  ],
  "workarounds_zh": [
    "Plan a minimum 7-day itinerary: Day 1-2: 2,700 m (Machame Gate), Day 3: 3,800 m (Shira Camp), Day 4: 4,600 m (Lava Tower, then descend to 3,900 m), Day 5: 3,900 m (Barranco Camp), Day 6: 4,000 m (Karanga Camp), Day 7: 4,700 m (Barafu Camp), Day 8: summit (5,895 m) and descend. Use 'climb high, sleep low' principle.",
    "If forced to do shorter itinerary (e.g., 5 days), include a rest day at 3,700 m (e.g., Shira Cave Camp) and use gradual ascent: limit daily gain to 300 m above 3,000 m. Monitor pulse oximetry; if SpO2 <80% at rest, descend. Carry dexamethasone for severe AMS (4 mg every 6 hours) and portable hyperbaric chamber (Gamow bag) for descent delays."
  ],
  "transition_graph": {
    "leads_to": [],
    "preceded_by": [],
    "frequently_confused_with": []
  },
  "official_doc_url": "https://www.cdc.gov/travel/page/travel-to-high-altitudes",
  "official_doc_section": null,
  "error_code": "ALTITUDE-AMS-RISK-001",
  "verification_tier": "ai_generated",
  "confidence": 0.88,
  "fix_success_rate": 0.82,
  "resolvable": "partial",
  "first_seen": "2024-01-10",
  "last_confirmed": "2024-06-01",
  "last_updated": "2024-06-01",
  "evidence_count": 1,
  "tags": [],
  "locale": "en",
  "aliases": []
}