IV-POTASSIUM-CONCENTRATION-ERROR medical protocol_error ai_generated true

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

Also available as: JSON · Markdown · 中文
92%Fix Rate
90%Confidence
1Evidence
2024-05-08First Seen

Version Compatibility

VersionStatusIntroducedDeprecatedNotes
ISMP Guidelines for Safe IV Potassium Administration 2023 active — — —
FDA Drug Safety Communication 2022 active — — —

Root Cause

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.

generic

中文

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。

Official Documentation

https://www.ismp.org/resources/guidelines-safe-administration-intravenous-potassium-chloride

Workarounds

  1. 95% success 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. 
    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. 90% success 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. 
    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. 85% success Use a premixed KCl solution from the pharmacy (e.g., 20 mEq in 1000 mL) for routine maintenance to avoid compounding errors. 
    Use a premixed KCl solution from the pharmacy (e.g., 20 mEq in 1000 mL) for routine maintenance to avoid compounding errors.

中文步骤

  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.

Dead Ends

Common approaches that don't work:

  1. 95% fail

    IV push of undiluted KCl can cause instantaneous cardiac arrest; the maximum rate of infusion is 10 mEq per hour via a peripheral line.

  2. 80% fail

    The concentration becomes >0.1 mEq/mL, which exceeds safe limits; alternative strategies like using a central line with lower concentrations should be used.

  3. 70% fail

    Incomplete mixing can result in a bolus of high-concentration KCl being infused, causing toxicity.