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HelpTest Code LAB4191 SODIUM
Specimen Type
Preferred Specimen: Lithium Heparin Plasma (Mint Green Top)
Alternative Specimen: Serum (SST, Gold, Corvac, Tiger, Red Top Tube)
Specimen Volume
1.0 mL
Minimum Volume
0.5 mL
Turnaround Time
STAT: 1 hour
Routine : 4 hours
Test Schedule
Daily and STAT
Sample Stability
Room Temp: 2 weeks
Refrigerated: 2 weeks
Frozen: 1 year
Method
Indirect ISE (Ion Selective Electrode)
Reference Ranges
| Sodium, mmol/L | |
| 0-28 Days | 133 - 146 |
| 28 Days-2 Years | 139 - 146 |
| 2-18 Years | 138 - 145 |
| 18-90 Years | 136 - 145 |
| >90 Years | 132 - 146 |
Synonyms
Na
Test Components
Sodium, mmol/L.
CPT Codes
84295