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Test Code LYTES Electrolytes

Important Note

This Panel includes:  Sodium, Potassium, Chloride, Bicarbonate, and Anion Gap (calc)

Additional Information

Sodium heparin samples are ok for sodium analysis if the collected tube is full If tube is not filled, test is not acceptable for sodium

Collection Container

Serum gel

Specimen Required

Serum

Other Acceptable Specimen Types

Heparinized plasma

Special Handling Instructions

Hemolysis and prolonged contact of serum with cells produces elevation of potassium. Elevated platelet count or very elevated white blood cell count may falsely elevate blood potassium. Plasma potassium may be ordered to eliminate interference.

Specimen Volume

1 mL

Minimum Specimen Volume

0.1 mL

Transport Temperature

Refrigerate

Specimen Stability

See individual test listings

Methodology

See individual test listings

Days and Times Performed

Daily

Turnaround Time

3 hrs for Routine, 1 hr for STAT

Reference Ranges

SODIUM (NA)
Age Males Females Units
All 133 - 145 133 - 145 mmol/L
POTASSIUM (K)
Age Males Females Units
All 3.6 - 5.2 3.6 - 5.2 mmol/L
CHLORIDE (CL)
Age Males Females Units
0 - 30 days 110-116 110-116 mmol/L
1 month - Adult 98-107 98-107 mmol/L
BICARBONATE (CO2)
Age Males Females Units
All 22 - 29 22 - 29 mmol/L

 

Units of Measure

mmol/L

CPT Code

80051

LOINC Code

55231-5

EMR Interface Order Code

05800