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[Extreme results in electrolyte determination].

W Vogt1, B Oesterle

  • 1Institut für Klinische Chemie und Laboratoriumsmedizin, Deutsches Herzzentrum München des Freistaates Bayern, Bundesrepublik Deutschland.

Wiener Klinische Wochenschrift. Supplementum
|January 1, 1992
PubMed
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This study analyzed extreme electrolyte values in patient samples to assess diagnostic validity. Confirmed extreme results for sodium, potassium, and chloride were compatible with life, aiding laboratory quality control.

Area of Science:

  • Laboratory Medicine
  • Clinical Chemistry
  • Quality Control

Context:

  • Patient specimen quality control enhances diagnostic certainty in laboratory medicine.
  • Alert and absurd value checks are crucial for plausibility judgments.
  • This study focuses on extreme electrolyte findings (sodium, potassium, chloride).

Purpose:

  • To identify and scrutinize extremely high or low electrolyte values.
  • To evaluate the clinical validity and underlying conditions of these extreme results.
  • To determine the clinical relevance and patient survival time associated with extreme findings.

Summary:

  • Retrospective analysis of extreme serum sodium, potassium, and chloride values over 21 months at a university hospital.
  • Clinical situations were evaluated, and findings were categorized as confirmed, questionable, or not confirmed.

Related Experiment Videos

  • Confirmed extreme values included sodium 191/100 mmol/l, potassium 9.0/1.3 mmol/l, and chloride 138/65 mmol/l, all compatible with life for a period.

    • Impact:

    • Provides practical insights for alert and absurd value checks in clinical laboratories.
    • Highlights the importance of validating extreme laboratory results for accurate diagnosis.
    • Suggests that while universally valid extreme ranges may be elusive, specific findings have clinical significance.