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Test Code 0998 Electrolyte Panel, Blood

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Profile Information:
Anion Gap, Calculated Potassium
Chloride Sodium
CO2 Content (Calculated)  

Method Name:

See individual test listings.
Literature Reference:

See individual test listings.

Specimen Requirements

Specimen Type: Whole blood

Container/Tube: Sims-Portex blood gas syringe

Specimen Volume: Full syringe

Additional Information: Send capped syringe (no needle attached) to the laboratory.

Day(s) Test Set Up

Monday through Sunday
Turnaround Time:
STAT: 15 minutes after receipt in laboratory
Routine: not available

Reference Values

Sodium

135-145 mmol/L

Critical result (automatic call-back): ≤120 mmol/L or ≥160 mmol/L

Potassium

3.3-4.9 mmol/L

Critical result (automatic call-back): ≤2.5 mmol/L or ≥6.2 mmol/L

Chloride

97-110 mmol/L

Critical result (automatic call-back): ≤75 mmol/L or ≥130 mmol/L

CO2 Content (Calculated)

21-30 mmol/L
Physician alert values (automatic call-back): ≤10.0 mmol/L or ≥45 mmol/L

Anion Gap

2-15 mmol/L

Critical result (automatic call-back): ≥25 mmol/L

 

Literature Reference:

See individual test listings.

Test Classification and CPT Coding

82435-Chloride

84295-Sodium

84132-Potassium

Additional Information

For BJH Laboratory Use Only
Analyte Stability:

See Analyte Stability Chart in Special Instructions.

Laboratory Processing Instructions:

Test performed in BJH Chemistry. Deliver to the blood gas workstation immediately.

Specimen Transport Temperature

Ambient

Special Instructions

LOINC Code Information

Name LOINC Code
Anion Gap (calculated) 41276-7
Chloride 2069-3
CO2 Content (calculated) 57920-1
Potassium 6298-4
Sodium 2947-0