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Test Name:

B-TYPE NATRIURETIC PEPTIDE (BNP)

Test Code:

2122581

Alias:

BNP
Brain Type Natriuretic Peptide
LAB9704

CPT Code(s):

83880

Preferred Specimen:

1.0 mL plasma *Follow collection instructions carefully*

Container:

Lavender (EDTA Plasma)

*If ordered with a CBC, please send a tube for BNP and CBC to prevent processing delays*

Minimum Volume:

0.5 mL plasma

This volume does not allow for repeat testing.

Collection Instructions:

Outpatient sites including RMG

Please spin down (centrifuge) the lavender tube and separate the plasma from the red cells into a separate tube. Do not send the primary tube

*If testing will be delayed past the 24 hour timeframe, freeze the plasma and send frozen*

Transport Temperature:

Refrigerated and plasma separated

Stability:

Room temperature: 7 hours (unspun whole blood only)
Refrigerated: 24 hours - plasma must be separated.

Frozen: 5 days

*May be added on to a CBC if within 7 hours of collection

Rejection Criteria:

Hemolysis

Whole blood tubes left unseparated >7 hours after collection. Please follow collection instructions

Schedule:

Set up: Daily; Results in 24-48 hours

Method:

Two-site immunoenzymatic (sandwich) assay

Clinical Significance:

BNP assay is used in the evaluation of acute congestive heart failure. It is FDA cleared for aid in diagnosis of heart failure and risk stratification of heart failure and acute coronary syndrome. Elevations can occur due to right heart failure,cor pulmonale, pulmonary hypertension, sepsis, renal failure and acute pulmonary embolism.

Use:

Updated 4/17/2023

Reference Ranges:

BNP results 100 pg/mL or greater are considered abnormal and suggestive of patients with CHF

Reference Range Table

Result	Units	Gender	Age	Range
BNP	pg/mL	Both	0 Year - 999 Year	0-99

The CPT codes included in this publication are in accordance with Current Procedural Terminology, a publication of the American Medical Association. CPT codes are provided here for the convenience of our clients; however, correct coding often varies from one carrier to another, and HealthLab may bill specific carriers using codes other than those shown. Clients who bill for services should verify the code(s) with the applicable payor to confirm that their use is appropriate in each case.

Reference Range Table

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