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Test Code 151 Electrolyte Panel

Additional Codes

MLAB: LYTES

PowerChart: Electrolyte Panel

Epic: LAB16 Electrolyte Panel

MA Cerner: Electrolytes.

Test Method

Mercy DBQ and Finley: Beckman DXC:

Sodium: Ion Exchange

Potassium: Ion Specific Electrode

Chloride: Ag/AgCl Electrode

CO2:Rate of pH Change, CO2 Electrodes

Mercy DV and MQMA: iSTAT

Sodium: Ion Selective Electrode Poteniometry

Potassium: Ion Selective Electrode Poteniometry

Chloride: Ion Selective Electrode Poteniometry

CO2: Ionic Strength Measurement

MA East and West: Siemens Xpand 

Sodium: Indirect Sample Sensing with IMT

Potassium: Indirect Sample Sensing with IMT

Chloride: Indirect Sample Sensing with IMT

CO2:  Bichromatic Rate Technique

Specimen Requirement

0.5 mL serum or plasma is required.

Additional Specimen Collection Information

Collect blood in a lithium heparin, green-top or red-top tube. PST and SST (gel tubes) are acceptable. Serum or plasma should be separated from contact with the cells within 2 hours of collection. Specimens not centrifuged within 4 hours of collection may be rejected. Refrigerate the specimen if unable to assay within 8 hours of collection. Hemolyzed specimens are not acceptable. Samples with >3+ lipemia must be cleared prior to analysis.

Performance

Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after the specimen arrives at the testing site.

Expedite: Typically completed within 1 hour after the specimen arrives at the testing site.

STAT: Typically completed within 30 minutes after the specimen arrives at the testing site.

Reference Values

Sodium: 135-145 meq/L

  • Critical Values:
    • Low: <120 meq/L
    • High: >160 meq/L

Potassium: 3.5-5.0 meq/L

  • Critical Values:
    • Low: <3.0 meq/L
    • High: >6.0 meq/L

Chloride: 100-108 meq/L

CO2: 24-32 meq/L

  • Critical Values:
    • Low: <10 meq/L
    • High: >40 meq/L

Anion Gap (calculated): 7-16 meq/L

CPT Code Information

80051 Multitest Laboratory Panel: Electrolyte Panel

Useful For

See individual tests.

LOINC Code Information

24326-1 Electrolyte 1998 Panel-Serum or Plasma