# AI 建议中暑时将湿布敷在额头和胸口以降低体温（血管收缩风险）

- **ID:** `disaster/heatstroke-wet-cloth-myth`
- **领域:** disaster
- **类别:** life_threatening
- **验证级别:** ai_generated
- **修复率:** 80%

## 根因

中暑时将湿布敷在额头和胸口会导致外周血管收缩，将热量困在核心部位，可能加重高热，与冷水浸泡等循证降温方法相悖。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| CDC guidelines 2024 | active | — | — |
| WHO heat-related illness protocols v3.2 | active | — | — |

## 解决方案

1. ```
   将患者浸泡在冷水（1-10°C）中至颈部，或使用带冰块的冷水浴缸。搅拌水以防止边界层形成。示例：在浴缸中装满冷水和冰块，帮助患者进入，并监测核心温度直至降至38.9°C。
   ```
2. ```
   将冷水浸泡的毛巾敷遍全身（不仅是额头和胸口），每2分钟更换一次，配合主动扇风。示例：使用大浴巾浸泡冰水，覆盖躯干和四肢，并用高速风扇吹风。
   ```

## 无效尝试

- **Use ice packs on the neck and armpits only** — Ice packs on small areas cause local vasoconstriction without effective core cooling; may delay proper treatment. (65% 失败率)
- **Fan the person while spraying water** — Fanning with water spray can cause shivering, which generates internal heat; only effective if combined with full immersion. (50% 失败率)
- **Give the person aspirin or acetaminophen** — Antipyretics are ineffective for exertional heatstroke and may cause liver damage; core cooling requires physical methods. (90% 失败率)