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Test Code BNP B-Natriuretic Peptide (BNP)

Important Note

BNP measurements should not be performed during Nesiritide infusion.

Additional Codes

MLAB: BNP

PowerChart: BNP (B -Type Natriuretic Peptide)

Epic: LAB106 Brain Natriuretic Peptide

MA Cerner: B-Natriuretic Peptide.

Test Method

Chemiluminescent Immunoassay; Beckman DxC

Specimen Requirement

2 mL plasma  is required.

Additional Specimen Collection Information

Collect blood in a EDTA, purple-top tube. Centrifuge within 2 hours of collection/ Plasma may be stored up to 8 hours at room temperature, or up to 24 hours refrigerated. Grossly hemolyzed specimens are not acceptable.

Performance

Testing is performed Monday through Sunday.

Routine orders: Typically completed within 4 hours after specimen arrives at the testing site.

STAT orders: Typically completed within 50 minutes after the specimen arrives at the testing site.

Reference Values

This test can be very helpful in distinguishing congestive heart failure from other causes of dyspnea in patients presenting with signs and symptoms that may or may not represent heart failure. BNP levels < 100 pg/mL have been shown to have a 98% negative predictive value with 95.6% specificity in that context.

CPT Code Information

83880 Chemistry: Natriuretic peptide

Useful For

Distinguising congestive heart failure from other causes of dyspnea in patients presenting with signs and symptoms that may or may not represent heart failure.

LOINC Code Information

30934-4  Natriuretic Peptide B [Mass/Volume] In Serum Or Plasma