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Test Code K Potassium, Plasma

Alias

K

Collection Method

Venous Collection

Container

Light Green Lithium Heparin tube

Instructions/Special Handling

None

Preferred Specimen

Light Green (Lithium Heparin) Plasma

Acceptable Specimes

  • Serum
    • Gold SST tube
    • Red tube
  • Plasma
    • Light Green lithium heparin

Units

mmol/L

Reference Ranges

3.3 - 4.9 mmol/L

 

Critical Values

Low:  </= 2.8 mmol/L

High:  >/= 6.2 mmol/L

Reasons for Rejection

Hemolysis Grossly Hemolyzed
Icterus N/A
Lipemia N/A
Other QNS, Contaminated, Improperly labeled, Improper specimen type

 

Specimen Stability

Ambient (15-25°C) 14 days
Refrigerated (2-8°C) 14 days
Frozen (-20°C) 30 days

 

Performing Site

Boone Health Laboratory

Performance Information

Days/Times Performed Daily 24/7
Expected Turn around Time Same day
Methodology/Method Description Roche Cobas - Ion-Selective Electrode

 

CPT Code(s)

84132

Panel Components

N/A