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Epic Code LAB114 Potassium, Blood Level

Test Name Alias

Potassium Blood Level | K+ | 8156

Interface Order Alias

10057

Specimen Requirements

Specimen Collection: Blood

Container(s): 4.5 mL Mint Green Top (Lithium Heparin Gel) or 5.0 mL Gold Top (Serum Separator-SST Gel)

Preferred Volume to Collect: 4.5 mL

Minimum Volume to Collect: 1.0 mL

Neonate Volume to Collect: 1.0 mL

Capillary collect ok? Yes

Microtainer acceptable: Yes

 

Collection Instructions:

  • Avoid hemolysis.
  • Avoid gross lipemia
  • After collection, gently invert tube 8-10 times.
  • Specimen should be processed within 2 hours – See Processing Instructions.

Processing Instructions (Laboratory, Outpatient or Off-site Collection):

Processed Specimen: Plasma or Serum

Centrifuge/Spin: Yes

Aliquot: Yes

Processing Instructions:

  • Plasma is preferred specimen type
  • Green Tube/Plasma: Centrifuge after collection.
  • Gold Tube/Serum: Allow blood to clot for 30 minutes in a vertical position and centrifuge within 2 hours
  • Minimum processed specimen volume: 0.5 mL plasma or serum

Transport Temperature: Refrigerated

Specimen Transport Temperature

Refrigerate

Special Instructions

Avoid hemolysis

Specimen Stability

Ambient: 8 hours

Refrigerate: 72 hours

Frozen: aliquot plasma/serum for longer storage

Laboratory Retention: 72 hours

Test Frequency

Available 24 hours, usual TAT 1 day.

Reference Range

0 up to 3 Days: 4.5 – 6.5 mmol/L
3 Days up to 3 Months: 3.8 – 5.5 mmol/L
3 Months and up: 3.4 – 5.0 mmol/L

 

Laboratory Critical Values Table

Performing Department

Chemistry

Performing Department Laboratory Location

Corewell Health Reference Laboratory, Grand Rapids, MI
Corewell Health Big Rapids Laboratory, Big Rapids, MI
Corewell Health Blodgett Laboratory, Grand Rapids, MI
Corewell Health Gerber Laboratory, Fremont, MI
Corewell Health Kelsey Laboratory, Lakeview, MI
Corewell Health Ludington Laboratory, Ludington, MI
Corewell Health Pennock Laboratory, Hastings, MI
Corewell Health Reed City Laboratory, Reed City, MI
Corewell Health Greenville Laboratory, Greenville, MI
Corewell Health Zeeland Laboratory, Zeeland, MI
Corewell Health Lakeland St. Joseph Laboratory, St. Joseph, MI
Corewell Health Lakeland Marie Yeager Cancer Center, St. Joseph, MI
Corewell Health Lakeland Niles Laboratory, Niles, MI
Corewell Health Lakeland Watervliet Laboratory, Watervliet, MI

Methodology

Ion-Selective Electrode

CPT

84132

CDM Code

3018413201

Epic Test ID

1230101060

LOINC

Potassium Lvl: 2823-3

Reviewed Date

3/7/2024