# AI告诉用户对怀孕或肥胖的窒息患者进行腹部冲击（海姆立克法），但推荐使用胸部冲击

- **ID:** `emergency/choking-hempregnant`
- **领域:** emergency
- **类别:** life_safety
- **错误码:** `CHOKE-PREG-OBESE-ERR-001`
- **验证级别:** ai_generated
- **修复率:** 82%

## 根因

AI对所有窒息患者应用通用的海姆立克法，忽略了对于孕妇（晚期）和肥胖者，腹部冲击可能伤害胎儿或因腹部质量而无效；胸部冲击是AHA/红十字会2020-2025指南的标准。

## 解决方案

1. ```
   对于孕妇或肥胖窒息患者：站在其身后，将一只手放在乳头线处的胸部（胸骨中心），进行快速向内冲击。重复直到物体排出或患者失去意识。示例：'将拳头放在胸部，用另一只手抓住，向内向上冲击。'
   ```
2. ```
   如果患者失去意识，将其放在地上，拨打911，开始CPR（胸外按压100-120次/分钟）。每次按压可能移出物体。30次按压后检查口腔。
   ```
3. ```
   培训用户识别怀孕/肥胖线索：询问'您怀孕了吗？'或目测腹部大小。如果是，立即切换到胸部冲击。
   ```

## 无效尝试

- **** — Some users attempt back blows alone, but back blows alone are insufficient for complete obstruction and may delay effective chest thrusts. (65% 失败率)
- **** — Others apply abdominal thrusts but with reduced force, which fails to clear the airway because the obstruction is often below the diaphragm in pregnant/obese patients. (75% 失败率)
- **** — A few call 911 and wait without any maneuver, which is dangerous because brain damage occurs within 4-6 minutes of complete obstruction. (90% 失败率)