Brain Natriuretic Peptide (BNP) (BNP)
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| Synonyms:
| BNP, NT proBNP |
| Specimen: | Blood; (1) Green (lithium heparin) top vacutainer tube, SST or plain red top tube. |
| Volume: | Full primary tube |
| Minimum Volume: | 0.5 ml whole blood or plasma |
| Collection: | Transfer plasma or serum to a tightly capped plastic aliquot tube within 2 hours of collection if testing is delayed.
Maintain specimen at 20-25°C or refrigerate at 2-8°C for 3 days; freeze at -20°C for 12 months. |
| Rejection Criteria: | EDTA samples; improper labeling or failure to spin down and separate as soon as possible. |
| Reference Range: | Clinically Reportable Range (CRR): 30-175,000 pg/mL |
| Methodology: | Chemiluminescent immunoassay |
| Test Use: | In individuals suspected of having congestive heart failure (CHF), measurements of NT-proBNP are used as an aid in the diagnosis and assessment of severity. The test is further indicated for the risk stratification of patients with acute coronary syndrom |
| Additional Information: | Repetitive freezing and thawing of specimens should be avoided.
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| Testing Includes: | Quantitative measurement of N-terminal pro-brain natriuretic peptide (NT-proBNP) |
| Testing Facility: | AnMed Laboratory |