| Ordering Code | 5774 |
|---|---|
| Test Name | NT proBNP |
| Alias | N-terminal pro-Brain Natriuretic Peptide NT-pro B-Natriuretic Peptide NT-B type Natriuretic Peptide |
| Preferred Specimen | Plasma |
| Preferred Container | Lithium Heparin PST (Green) |
| Other Specimen/Container | Plasma in Lithium Heparin (Dark Green-PP No Gel), Serum in SST (Gold), Serum in Plain (Red) |
| Optimum Volume | 0.5 mL |
| Handling Instructions | Allow serum to completely clot before centrifugation and keep in an upright position All specimen types must be centrifuged within 2 hours of collection. If no gel separation present in tube and testing is delayed, plasma/serum is aliquoted from cells within 2 hours of collection. |
| Transport Requirements | Oahu: Ambient Airline: Refrigerated |
| Specimen Stability | Ambient: 24 Hours Refrigerated: 3 Days Frozen: 30 Days |
| Rejection Criteria | Insufficient quantity, Specimen older than stability limits, Thaw sample more than once |
| Avail. Stat | YES |
| Analytic Time | 1 Day |
| Methodology | Chemiluminescent Immunoassay - Two-site Immunoenzymatic |
Reference range(s)
The reference ranges listed below are valid on this date of March 31, 2026.
| Component | Age | Male Norm | Male Critical Low | Male Critical High | Female Norm | Female Critical High | Female Critical Low | Units | Add'l info |
|---|---|---|---|---|---|---|---|---|---|
| NT proBNP | ALL | <300 | <300 | pg/mL |