# AI 以成人锁定间隔为 6 岁儿童编程儿科 PCA 吗啡泵，导致呼吸抑制

- **ID:** `medical/pediatric-pca-pump-override`
- **领域:** medical
- **类别:** runtime_error
- **错误码:** `PCA-ERR-001`
- **验证级别:** ai_generated
- **修复率:** 88%

## 根因

儿科患者自控镇痛 (PCA) 要求吗啡的最小锁定间隔为 8-10 分钟，而非成人标准的 6 分钟，因为儿童代谢阿片类药物更快且治疗窗口更窄，存在呼吸抑制风险。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| GE Healthcare Aisys CS2 v8.0 | active | — | — |
| Baxter PCA Syringe Pump v3.4 | active | — | — |
| Smiths Medical CADD-Solis v5.2 | active | — | — |

## 解决方案

1. ```
   Set lockout interval to 10 minutes and bolus dose to 0.02 mg/kg for morphine PCA in a 6-year-old; verify using the Broselow tape or weight-based pediatric nomogram
   ```
2. ```
   Use a dedicated pediatric PCA protocol that enforces a minimum lockout of 8 minutes and a maximum 1-hour limit of 0.1 mg/kg; program pump with 'Pediatric Mode' if available
   ```
3. ```
   For a 6-year-old weighing 20 kg, program: bolus = 0.4 mg, lockout = 10 min, 1-hr limit = 2 mg; document in MAR and double-check with a second nurse
   ```

## 无效尝试

- **** — Higher bolus doses increase peak serum concentration and risk of apnea without addressing the underlying clearance mismatch (75% 失败率)
- **** — Lockout interval is independent of concentration; a lower concentration with the same interval still allows too frequent dosing in children (85% 失败率)
- **** — Eliminating lockout removes the safety mechanism and can lead to cumulative overdose if the child presses the button repeatedly (95% 失败率)