Test Code PBNP Pro-Brain Natriuretic Peptide
Additional Codes
| EPIC | LAB4019 |
Clinical Significance
Immunoassay for the in vitro quantitative determination of N‑terminal pro‑Brain natriuretic peptide in human serum and plasma. This assay is used as an aid in the diagnosis of individuals suspected of having heart failure. It can be used as an aid in the diagnosis of acute decompensated heart failure (ADHF) in patients presenting with signs and symptoms of ADHF to the emergency department (ED). The test is further indicated for the risk stratification of patients with acute coronary syndrome and heart failure. The test may also serve as an aid in the assessment of increased risk of cardiovascular events and mortality in patients at risk for heart failure who have stable coronary artery disease.
Source: Roche cobas Elecsys proBNP II method sheet, V 3.0 2023-08
Methodology
Two-site immunoenzymatic (Sandwich) assay (Roche Cobas e801)
Sample Type
| Preferred Sample Type | |
|---|---|
| Light green top - Plasma | |
| Acceptable Sample Type(s) | |
|---|---|
| Dark green top - Plasma | |
| Lavender top - EDTA Plasma | |
Centrifuge: Yes
Specimen Minimum Volume
55 uL with insert cup
Specimen Stability
| Temperature | Time |
|---|---|
| Ambient (20-25°C) | 3 days |
| Refrigerated (2-8°C) (store) | 6 days |
| Frozen (<-20°C) | 2 years* |
Separate serum/plasma from cells within 2 hours.
*Freeze only once!
Reference Ranges
| Normal Range | |
|---|---|
| <75 years | 0 - 125 pg/mL |
| >75 years | 0 - 450 pg/mL |
| Technical Range |
|---|
| 36 - 35,000 pg/mL |
Rejection Criteria
| Hemolysis | Index >1,000 |
|---|---|
| Icterus | Index >50 |
| Lipemia | Index >1,500, ultracentrifuge |
Availability
| Performed | STAT |
|---|---|
| 24/7 | Yes |
Performing Laboratory
MultiCare Yakima Memorial Hospital Laboratory
Lab Department
Chemistry
CPT Code
83880
LOINC
33762-6 Natriuretic peptide.B prohormone N-Terminal [Mass/Vol]