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HelpTest Code NA Sodium, Serum/Plasma
Specimen Volume
1.0 mL
Preferred Specimen
Gold (SST) (Serum)
Alternate Specimen
Green Gel (GGT)
Specimen Handling Instructions
Use Lithium-heparin tubes only. Green-top tube (plasma-GGT) is also an
Transport
Routine courier pick-up
Cutoff Time
None
Department
ChemistryMethodology
Ion selective electrode
Stat Turn-around Time
1 Hour
Routine Turn-around Time
1 DayReference Ranges
135-145 mEq/L