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Test Code



Testing performed on Beckman Coulter DxC 700 AU analyzer.

Test Utility

The Potassium test system is intended for the quantitative measurement of potassium in serum and to monitor electrolytes balance in the diagnosis and treatment of conditions characterized by low or high blood Potassium levels.

Specimen Storage and Stability

Separate serum from blood cells ASAP. Avoid hemolysis since it can lead to falsely elevated K+ value. One Gold Top SST, minimum 2.0mL of whole blood. Potassium is stable in serum for at least 7 days at 2-8C.

Specimen Collection and Preparation

Serum, free from hemolysis, is the recommended specimen.

Specimen Rejection

  • Improperly labeled

  • Specimen grossly

  • Hemolyzed uncentrifuged

Reference Ranges

3.5 - 5.1mEq/L


Monday - Saturday, 16 hours a day.

Result available after getting the specimen in 5 hours.

STAT results available within 2 hours of receipt in the Laboratory.

*NOTE: All Specimen Refrigerated (2-8°C) for 7 days only.


Vibra Health Laboratory

Phone: (248) 846-0663

1307 Allen Dr, Suite A, Troy, MI 48083

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