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
AI instructs a nurse to administer IV potassium chloride at a concentration exceeding 0.1 mEq/mL, risking fatal hyperkalemia and cardiac arrest
ID: medical/incorrect-dilution-of-intravenous-potassium-chloride
版本兼容性
| 版本 | 状态 | 引入 | 弃用 | 备注 |
|---|---|---|---|---|
| ISMP Guidelines for Safe IV Potassium Administration 2023 | active | — | — | — |
| FDA Drug Safety Communication 2022 | active | — | — | — |
根因分析
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。
English
IV potassium chloride must never be administered undiluted or at concentrations above 0.1 mEq/mL (or 10 mEq per 100 mL) due to the risk of rapid serum potassium elevation causing cardiac arrhythmias; standard practice requires dilution in at least 100 mL of compatible fluid.
官方文档
https://www.ismp.org/resources/guidelines-safe-administration-intravenous-potassium-chloride解决方案
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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.
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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.
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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
常见但无效的做法:
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95% 失败
IV push of undiluted KCl can cause instantaneous cardiac arrest; the maximum rate of infusion is 10 mEq per hour via a peripheral line.
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80% 失败
The concentration becomes >0.1 mEq/mL, which exceeds safe limits; alternative strategies like using a central line with lower concentrations should be used.
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70% 失败
Incomplete mixing can result in a bolus of high-concentration KCl being infused, causing toxicity.