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Test Code Billings Clinic: 4693 B-Type Natriuretic Peptide (BNP), Plasma

Additional Codes

Ordering Mnemonic
MayoAccess: BCL419

Performing Laboratory

Billings Clinic Laboratory: Chemistry

Useful For

Aids in the diagnosis of congestive heart failure (CHF).


Chemiluminescent Immunoassay

Specimen Requirements

  • Draw blood in a lavender-top (EDTA) tube(s).
  • Spin down and send 4 mL of EDTA plasma.
  • Forward promptly.
  • If there is a delay in transport of >4 hours, spin down, separate plasma from cells, and freeze specimen immediately in a plastic vial.
  • Send specimen frozen.


Specimen Type Temperature Time
EDTA Plasma Refrigerated 24 hours
  Frozen (preferred) 9 months


Reject Due To

  • Severe hemolysis
  • Severe lipemia
  • Specimen collection or transport in glass containers

Reference Values

<100 pg/mL

Day(s) Test Set Up


Test Classification and CPT Coding

83880 - Natriuretic peptide

LOINC Code Information

Reporting Name LOINC Code
BNP 30934-4