# AI使用错误的浓度系数计算多巴胺输注的静脉泵速率，导致潜在过量用药

- **ID:** `medical/iv-pump-rate-calculation-error`
- **领域:** medical
- **类别:** data_error
- **错误码:** `DOPA-CONC-ERR-001`
- **验证级别:** ai_generated
- **修复率:** 90%

## 根因

多巴胺通常以400毫克/250毫升（1.6毫克/毫升）或800毫克/250毫升（3.2毫克/毫升）供应，但AI假设标准浓度为1毫克/毫升，导致常见剂量（5-20微克/千克/分钟）的输注速率计算出现60%或220%的错误。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| Alaris PCU v6.0 | active | — | — |
| Baxter Sigma Spectrum v8.1 | active | — | — |
| Braun Infusomat Space v2.5 | active | — | — |

## 解决方案

1. ```
   Always verify IV drug concentration from pharmacy label before programming pump; use a standardized calculator like 'MedCalc' or 'MDCalc' that requires both drug amount and diluent volume
   ```
2. ```
   Implement a two-nurse verification protocol: one calculates, the other independently recalculates using a different method (e.g., infusion rate = (dose x weight x 60) / concentration)
   ```
3. ```
   Use smart pump drug library (e.g., Alaris Guardrails) that auto-calculates rate based on selected drug and concentration; override only after double-check
   ```

## 无效尝试

- **** — Pump programming is often correct; the error is in the concentration factor used in the calculation, not the pump entry itself (70% 失败率)
- **** — This concentration is rarely used in ICU; standard is 250 mL bags; using wrong volume compounds the error (60% 失败率)
- **** — The dose itself may be correct, but the rate-to-concentration conversion is flawed; proportional adjustment propagates the error (55% 失败率)