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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.
Outpatient Turnaround Time
24 hours after receipt
Inpatient STAT Turnaround Time
45 minutes after receipt
Inpatient Routine Turnaround Time
4 hours after receipt