B-Type Natriuretic Peptide
Time SensitiveTime Sensitive

Ordering Recommendation
Aids in diagnosis, prognosis, and management of acute and chronic heart failure.
Submit With Order
Quantitative Chemiluminescent Immunoassay
Within 24 hours
New York DOH Approval Status
This test is New York DOH approved.
Specimen Required
Patient Preparation
Lavender (EDTA) or pink (K2EDTA).  
Specimen Preparation
Separate plasma from cells within 2 hours of collection. Transfer 2 mL plasma to an ARUP Standard Transport Tube and freeze within 4 hours of collection. (Min: 0.5 mL)  
Storage/Transport Temperature
Unacceptable Conditions
Frozen whole blood. Specimens collected in non-EDTA tubes. Specimens frozen in separator tube. Specimen exposed to repeated freeze/thaw cycles. Refrigerated or room temperature specimens more than 4 hours old. Hemolyzed specimens.  
After separation from cells: Ambient: 4 hours; Refrigerated: 4 hours; Frozen: 4 months  
Reference Interval
Refer to Interpretive Data.
Interpretive Data
A cutoff of 100 pg/mL has been demonstrated to provide the maximal combination of sensitivity, specificity, and negative predictive value for contributing to the diagnosis of congestive heart failure (CHF). A BNP value greater than 100 pg/mL is consistent with a diagnosis of CHF in the appropriate clinical setting. False-positive results are more common in females greater than 75 years of age. Blood concentrations of natriuretic peptides may also be elevated in patients with myocardial infarction and in patients who are candidates for or are undergoing renal dialysis.
CPT Code(s)
Component Test Code*Component Chart Name
0030191B-Type Natriuretic Peptide
* Component test codes cannot be used to order tests. The information provided here is not sufficient for interface builds; for a complete test mix, please click the sidebar link to access the Interface Map.
Cross References
  • BNP
  • BNP (Brain Natriuretic Peptide)
  • Brain Natriuretic Peptide
  • Brain Type Natriuretic Peptide
  • Natriuretic Peptide