Brain Natriuretic Peptide

Message

Unable to be added on to specimens > 4 hrs old.

Test Code

BNP

Alias/See Also

Brain naturiatic peptide
Chemistry

Preferred Specimen

Purple Top Tube -PLASMA

Minimum Volume

2 mL

Transport Temperature

Frozen

Specimen Stability

Room temperature: 4 hrs
Refrigerated (2-8°C): 72 hrs
Frozen (-20°C or colder): 3 months
Max freeze/thaw cycles: 3

Methodology
Chemiluminescence microparticle immunoassay

Setup Schedule

Daily

Report Available

TAT 1 day

Limitations

If testing is not performed within 4 hours samples must be frozen.

Reference Range

5-100 pg/mL : Normal, CHF unlikely 100-400 pg/mL : Abnormal, patients with LV dysfunction >400 pg/mL: CHF likely

Clinical Significance

Plasma BNP levels provide clinically useful information concerning the diagnosis and management of left ventricular dysfunction and heart failure, which complements other diagnostic testing procedures (e.g.. electrocardiograms, chest x-rays, and echocardiograms). Elevated levels of BNP in heart failure patients predict disease progression and increased morbidity and mortality. Acute coronary syndrome (ACS) patients with increased BNP levels have a higher rate of cardiac complications and higher mortality post myocardial infarction.

Performing Laboratory
Test performed at West Roxbury Chemistry Lab
Contact: Jonathan Dryjowicz-Burek 857-203-5973

Last Updated: April 3, 2019

The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.