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POTASSIUM
Test CodeLAB114
CPT Codes
84132
Preferred Specimen
One 4.5 mL light green top tube
Pediatric: One light green top microtainer
Pediatric: One light green top microtainer
Other Acceptable Specimens
Dark green top tube
Red top tube
Gold top tube
Red top tube
Gold top tube
Instructions
Sample must be centrifuged within two hours of collection. Serum/plasma (red or dark green top tube) must be removed from the red cells and put into aliquot tubes following centrifugation.
Transport Temperature
Refrigerated
Specimen Stability
Unstable, centrifuge within two hours of collection
Ambient: 7 days
Refrigerated: 7 days
Frozen: 1 year
Ambient: 7 days
Refrigerated: 7 days
Frozen: 1 year
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis
Methodology
Ion-Selective Electrode (ISE) Indirect
Setup Schedule
Sunday-Saturday
Reference Range
0-1 month: 3.5-6.0 mmol/L
≥1 month: 3.5-5.1 mmol/L
Critical level:
0-1 month: ≤2.5 mmol/L or ≥8.0 mmol/L
≥1 month: ≤2.8 mmol/L or ≥6.0 mmol/L
≥1 month: 3.5-5.1 mmol/L
Critical level:
0-1 month: ≤2.5 mmol/L or ≥8.0 mmol/L
≥1 month: ≤2.8 mmol/L or ≥6.0 mmol/L
Performing Laboratory
West Virginia University Hospital, Inc.
Bluefield Pavilion Campus Berkeley Medical Center Barnesville Hospital Braxton County Memorial Camden Clark Medical Center Camden Clark Medical Center Fairmont Medical Center Garrett Regional Medical Center Harrison Community Hospital Jackson General Hospital Jefferson Medical Center Princeton Community Hospital Potomac Valley Hospital Reynolds Memorial Hospital Summersville Regional Medical Center St. Joseph’s Hospital United Hospital Center Uniontown Hospital Wetzel County Hospital Wheeling Hospital