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Test Code Potassium Potassium

Abbrev

K

Storage Temperature

R (2-8ºC)

ASTM/HL7/SDF 1

SQ=K

EPIC=LAB114

SQ=KXB (Reflex to Mg)

EPIC=10006 (Reflex to Mg)

Instrument/Location

Beckman DXC 700 AU

Specimen Requirements

Specimen
Type: Serum or Plasma (Lithium Heparin)

 

Container/Tube
Type: Gold Top or Lt. Green Top.

 

Collection
Instructions: Draw tube and label appropriately.
Allow Gold top tubes to clot for 30 minutes. Spin tubes within
2
hours.

 

Note: Hemolyzed Specimens
are
not acceptable.

Specimen Transport Temperature

Spun tube/Refrigerated

Reference Values

3.5-5.0 mmol/L

 

Critical Values: <3.0 mmol/L or >6.0 mmol/L

Methodology

Indirect Potentiometry

Specimen stability/Retention time

7 days refrigerated. K testing must be completed within 24 hours.