Jan 8, 2018




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B-Type Natriuretic Peptide

B-Type Natriuretic Peptide (XBNP) Chemistry Lab Test

Name: B-Type Natriuretic Peptide

Test Name: B-Type Natriuretic Peptide

Health Link Test Code: XBNP

LIS Test Code: BNP

CPT Code(s): 83880

Methodology: Chemiluminescent Immunoassay

Days Performed: Daily, 24 hours.

In-Lab Turnaround Time: 4 hours.

Stat In-Lab Turnaround Time: 1 hour.

Specimen: Blood

Collection Container: Lavender top

Collection Volume: 4 mL

Pediatric Collection Volume: 1 mL

Stability Ambient:

Whole blood and plasma: 4 hours

Stability Refridgerated:

Whole blood and plasma: 24 hours

Stability Frozen:

Plasma 3 months

Sample Analyzed: Plasma

Testing Volume: 1 mL

Pediatric Testing Volume: 0.5 mL

Specimen Processing:

Centrifuge. Transfer cell-free plasma to plastic vial. Freeze specimen.

Specimen Transport:

Transport specimen to the laboratory. Transport with coolant pack if coming from clinic location. Transport frozen plasma on dry ice.

Unacceptable Criteria:

Glass tubes are not acceptable for this method.


0 days and up: 0-99 pg/mL

Interpretation Type: Reference Interval

Test Limitations:

Results may be affected if patient has developed heterophilic antibodies due to exposure to animal based protein products.