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Labcorp Oklahoma, Inc.
Test Directory


Index:

Potassium Level

Order Name POTASSIUM
Test Number: 2004600
Revision Date 05/28/2021
Test Name Methodology LOINC Code
Potassium Level
Ion-Selective Electrode 2823-3 
SPECIMEN REQUIREMENTS
Specimen Specimen Volume (min) Specimen Type Specimen Container Transport Environment
Preferred 1 mL (0.5) Plasma Lithium Heparin PST (Light Green Top) Refrigerated
Alternate 1 1 mL (0.5) Serum Clot Activator SST Refrigerated
Instructions Stability: Ambient 7 days, Refrigerated 7 days, Frozen 1 year
GENERAL INFORMATION
Testing Schedule Daily 
Expected TAT 1-2 days  
Clinical Use Useful in monitoring metabolic processes, hydration, proper body pH and regulation of appropriate heart and muscle functions. 
CPT Code(s) 84132
Lab Section Chemistry