Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Chemical Pathology
Delphic Registration Code (Alpha Code)
SLDH
Test Code (Numeric Code)
0138
Laboratory Handling
Separating
If separation of blood is delayed for more than 3h, LDH leaks from red cells and falsely elevated LDH activity levels will be seen.
Sample Stability
7 days at 15-25°C, 4 days at 2-8°C, 6 weeks at -20°C
Synonyms
LD, Serum LDH
Turnaround Time
3 hours
Specimen Type
- Plasma
- Serum
Specimen Requirements
Tube/Container Type:
Preferred
- Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
- Lithium Heparin - Non-gel (Green Cap)
- Plain (Red Top)
- SST II (Gold Cap)
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- Heparin (Microtainer)
Acceptable
- Plain(Microtainer)
- SST(Microtainer)
Additional Specimen Information
PST 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 3.5 mL SST Blood
Microsample 0.5 mL Paediatric Microsample Blood
Micro-heparin 0.5 mL Paediatric Micro-heparin Blood
Last updated: 30/03/2026