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HelpTest Code NT-ProBNP NT-ProBNP
Aliases
BNP, B Type Natriuretic Peptide
Patient Preparation
No special patient preparation required
Collection Method
Venous collection
Minimum Volume
- Adults: 0.8 ml
- Pediatric: 0.5 ml
Container
Lt Green / Plasma Separator / Lithium Heparin
Preferred Specimen
Light Green Top (lithium heparin) plasma
Acceptable Specimens
Serum:
- Gold Top SST
- Red Top
Plasma:
- Light Geen Top (Lithium heparin)
- Purple or Pink Top(K2/K3 EDTA)
Reference or Target Ranges
| 0 – 75 years | 0 – 125 pg/mL |
| >75 years | 0 – 450 pg/mL |
Reportable Units
pg/mL
Critical Value
Not defined for this assay
Reasons for Rejection
| Hemolysis Threshold | 1000 mg/dL |
| Icterus Threshold | 25 mg/dL |
| Lipemia Threshold | 1500 mg/dL |
| Other | QNS, contaminated, improperly Labeled, improper specimen type |
Specimen Stability
| Ambient | 3 days |
| Refrigerated (4°C to 8°C) | 6 days |
| Frozen(-40°C to 0°C) | 2 years |
Performance Information
| Days and Time Performed | 24/7 |
| Expected Turn Around Time | Stat: 1 hour Routine: 4 hours |
| Stat Availability | Yes |
| Performing Bench | UH Chemistry, WCH Chemistry |
| Methodology/Method Description | Roche Cobas – Two site immunoenzymatic sandwich assay |
CPT Codes
83880