Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Chemical Pathology
Delphic Registration Code (Alpha Code)
PHB
Test Code (Numeric Code)
0327
Laboratory Handling
Separating
Laboratory: separate plasma from red cells if stored longer than 2 hours.
Sample Stability
Sample stable for 6 days at 4°C, 30 days at -20°C
Synonyms
Plasma free Haemoglobin, Free plasma haemoglobin, PHB, Haemoglobin - plasma
Turnaround Time
3 hours
Specimen Type
- Plasma
Specimen Requirements
Tube/Container Type:
Preferred
- Lithium Heparin PST- Gel (Light Green Cap)
Acceptable
- Lithium Heparin - Non-gel (Green Cap)
Preferred Sample Volume (ml)
5
Minimum Sample Volume (ml)
4.5
No of Samples Required
1
Paediatric Specimen Requirements
Tube/Container Type:
Preferred
- Heparin (Microtainer)
Acceptable
- Lithium Heparin - Non-gel (Green Cap)
- Lithium Heparin PST- Gel (Light Green Cap)
Preferred Sample Volume (ml)
0.5
Minimum Sample Volume (ml)
0.5
Last updated: 06/08/2026