# AI指示护士以超过0.1 mEq/mL的浓度静脉注射氯化钾，有致命性高钾血症和心脏骤停风险

- **ID:** `medical/incorrect-dilution-of-intravenous-potassium-chloride`
- **领域:** medical
- **类别:** protocol_error
- **错误码:** `IV-POTASSIUM-CONCENTRATION-ERROR`
- **验证级别:** ai_generated
- **修复率:** 92%

## 根因

静脉氯化钾绝不能未经稀释或以超过0.1 mEq/mL（或每100 mL 10 mEq）的浓度给药，因为血清钾快速升高可导致心律失常；标准做法要求至少用100 mL相容液体稀释。

## 版本兼容性

| 版本 | 状态 | 引入 | 弃用 |
|------|------|------|------|
| ISMP Guidelines for Safe IV Potassium Administration 2023 | active | — | — |
| FDA Drug Safety Communication 2022 | active | — | — |

## 解决方案

1. ```
   Use a smart IV pump with dose-error reduction software (DERS) that has a hard limit for potassium concentration (e.g., 0.1 mEq/mL max) and alarms if exceeded.
   ```
2. ```
   Always dilute each 10 mEq of KCl in at least 100 mL of compatible IV fluid (e.g., normal saline or D5W) and label the bag clearly with the concentration.
   ```
3. ```
   Use a premixed KCl solution from the pharmacy (e.g., 20 mEq in 1000 mL) for routine maintenance to avoid compounding errors.
   ```

## 无效尝试

- **** — IV push of undiluted KCl can cause instantaneous cardiac arrest; the maximum rate of infusion is 10 mEq per hour via a peripheral line. (95% 失败率)
- **** — The concentration becomes >0.1 mEq/mL, which exceeds safe limits; alternative strategies like using a central line with lower concentrations should be used. (80% 失败率)
- **** — Incomplete mixing can result in a bolus of high-concentration KCl being infused, causing toxicity. (70% 失败率)