Home
HelpOrder Code LAB20 Sodium, Plasma or Serum
Additional Codes
| Test Name in EPIC | EPIC Test Code | Mnemomic |
| RV SODIUM | LAB20 | NA |
Useful For
Sodium assays are important in assessing acid-base balance, water balance, water intoxication, and dehydration
Specimen Requirements
Specimen Type: Plasma or Serum
Collection Container/Tube:
Preferred: Green-top (lithium heparin) gel tube
Acceptable: Plain, red-top tube or SST
Specimen Volume: 2 mL
Pediatric (minimum) volume: 0.5 mL
Specimen Stability
| Specimen Type | Temperature | Stability |
| Plasma or Serum | Ambient | 4 days |
| Refrigerated (preferred) | 7 days | |
| Frozen | 6 months |
Reference Values
- 135 - 144 mmol/L
- Critical values (automatic call-back):
- Low: < 125 mmol/L
- High: > 152 mmol/L
Day(s) Test Set Up
Monday through Sunday
Performing Laboratory
Ridgeview Medical Center Laboratory
Two Twelve Medical Center Laboratory
Ridgeview Sibley Medical Center Laboratory
Ridgeview Le Sueur Medical Center Laboratory
Methodology
Potentiometric
Test Classification and CPT Coding
84295