CPT/HCPCS
83880
Order Code
CH280
Turnaround Time
24 hours
Test Includes
BNP
Specimen Requirements
Specimen Source
Whole Blood
Transport Container
(Specimen Container)
(Specimen Container)
Lavender (K2-EDTA)
Preferred Specimens
Whole Blood (EDTA)
Minimum Volume (uL)
minimum fill line on tube
Collection Instructions
(Transport Temperature)
(Transport Temperature)
Refrigerate
Specimen Stability
| Temperature | Period |
|---|---|
| Room temperature | 7 hours |
| Refrigerated | 24 hours |
| Frozen | 30 days |
Test Details
Methodology
fluorescence immunoassay
Clinical Significance
BNP is a hormone that the heart produces, mainly in the left ventricle, to help regulate blood circulation. BNP levels rise when the heart is stretched or stressed by fluid overload or injury. BNP works to keep the blood vessels widened, or dilated, and to stimulate the kidneys to excrete salt and water, or natriuresis. This reduces the blood volume and pressure and protects the heart from overload.
Reference Ranges
<100 pg/mL
