Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Chemical Pathology
Delphic Registration Code (Alpha Code)
SNA
Test Code (Numeric Code)
0102
Laboratory Handling
Phlebotomy
Please Note: If extended electrolytes are requested only Na, K and Cl will be registered. If other tests are required please specify.
Registration
Please Note: If extended electrolytes are requested only Na, K and Cl will be registered. If other tests are required please specify.
Sample Stability
14 days at 15-25°C 14 days at 2-8°C Stable at -20°C
Synonyms
corrected sodium, Serum Na
Turnaround Time
3 hours
Specimen Type
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
- Heparin (Microtainer)
- Lithium Heparin - Non-gel (Green Cap)
- Plain (Red Top)
- SST II (Gold Cap)
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- Heparin (Microtainer)
Acceptable
- Lithium Heparin - Non-gel (Green Cap)
- Lithium Heparin PST- Gel (Light Green Cap)
- Plain (Red Top)
- SST II (Gold Cap)
Additional Specimen Information
4.5 mL PST Blood (Preferred)
Micro-PST 0.5 mL Paediatric Micro-PST Blood (Preferred)
Heparin 5 mL Heparin Blood
Plain 4 mL Plain Blood
SST 3.2 mL Adult SST Blood
Microsample 0.5 mL Paediatric Microsample Blood
Last updated: 28/04/2026