Whole blood-Plastic Lavender-top Tube EDTA Plasma
(BNP is unstable in glass containers)
Plasma-Frozen aliquot if testing will not be performed within 4hrs
Test Directory
4200 B-Type Natriuretic Peptide (BNP)
Specimen Type
Specimen Stability
Reference Range
24hrs, refrigerated
2 weeks, frozen
2 weeks, frozen
< 100 pg/mL
Specimen Requirements
3.0 mL Whole Blood or
1.0 mL Separated Plasma
1.0 mL Separated Plasma
Method
Immunochemiluminometric (ICMA)
Schedule
Mon-Sat
Turn-Around Time
24 hrs; Also offered STAT at an additional charge
Instructions/Notes
If testing will not be performed within 4hrs, centrifuge lavender top tube; separate plasma into aliquot tube and freeze. Call lab for frozen specimen pick-up.
Clinical Utility
To help diagnose the presence and severity of congestive heart failure
CPT Codes
83880
