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HelpTest Code LAB114 Potassium
Specimen Requirement
0.5 mL Serum or Lithium Heparin plasma; SST and PST acceptable.
Hemolyzed specimens are not acceptable.
Avoid prolonged contact with red blood cells.
Specimen Stability
7 days at 2-8° C
7 days at 20-25° C
Testing Schedule
Daily
Reference Range
3.6 - 5.5 mmol/L
Testing Department
Chemistry
Method
Ion selective electrode dilute (Indirect)
CPT Code
84132
Additional Testing Locations
This test is also performed daily at the following Altru Clinics:
- Crookston
- Devils Lake
Please contact appropriate lab location for specific test information, as methodology varies by site.