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* Electrolytes

Mnemonic

LYT

Synonym

Lytes

Includes

Total Carbon Dioxide (CO2), Chloride (Cl), Potassium (K), Sodium (Na)

Specimen Collection Requirements

Collect

Serum or Plasma, one 5.0 mL gold (SST), 7.0 mL red or 3.0 mL mint green (PST) top tube

Handling

Allow serum to clot completely at room temperature (minimum: SST - 30 minutes and red top tubes - 60 minutes). Preferably, separate serum or plasma from cells within 2 hours of collection.

Preferred Volume

1.0 mL Serum/Plasma

Minimum Volume

0.25 mL Serum/Plasma, (Whole Blood 0.60 mL minimum draw)

Transport

Refrigerated (2-8°C)

Rejection Criteria

Moderately hemolyzed specimens

Stability

AFTER SEPARATION FROM CELLS: Room Temperature (18-26°C): 24 hours; Refrigerated (2-8°C): 3 days; Frozen (at or below -20°C): 1 month

Testing Information

Performed

7 days/week

Reported

24 hours

Method

Ion Selective Electrode, Enzymatic

Reference Values

Reference Values

See specific tests.

Age adjusted ranges.

Critical Values

See specific tests.

CPT Codes

80051

Last Updated: Saturday, January 30, 2021 01:33:50 AM


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