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Potassium Level

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Lithium Heparin Gel

Specimen Requirements

Preferred:
Container/Tube: Mint Green Top (Lithium Heparin Gel)
Minimum Volume: 1.0 mL
Collection Instructions: Centrifuge within 2 hours
Also Acceptable:
Container/Tube: Gold Top (SST-Gel)

Specimen Stability

Ambient: 8 hours
Refrigerate: 48 hours
Frozen: aliquot for longer storage

Reference Range

BVH Lab
0-7 Days: 3.2-5.5 mmol/L
8 Days-1 Year: 3.4-6.0 mmol/L
2+ Years: 3.4-4.8 mmol/L

BFT Lab:
3.4-4.8 mmol/L

AFCCC Lab:
3.5-5.1 mmol/L

Methodology

Ion selective electrode (ISE)

CPT

84132

Test Alias

K