Testing Laboratory
Auckland Te Toka Tumai | Auckland HospitalDepartment
Chemical Pathology
Delphic Registration Code (Alpha Code)
NBNP
Test Code (Numeric Code)
3544
Laboratory Handling
Transport
Transport plasma at ambient temp, but freeze if it is likely to take more than 3 days to reach LabPlus.
Sample Stability
3 days at 20-25°C, 6 days at 2-8°C, 24 months at -20°C
Synonyms
B-type natriuretic peptide, N-BNP, Pro-BNP
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)
Preferred Sample Volume (ml)
4.5
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)
Minimum Sample Volume (ml)
0.5
Additional Specimen Information
4.5 mL PST Blood (Preferred)
Heparin 5 mL Heparin Blood
Plain 4 mL Plain Blood
SST 3.5 mL SST Blood
Micro-PST 1 mL Paediatric Micro-PST Blood
Last updated: 12/03/2026