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Test Code PBNP Pro-Brain Natriuretic Peptide

Additional Codes

EPIC LAB4019

Clinical Significance

Immunoassay for the in vitro quantitative determination of N‑terminal pro‑Brain natriuretic peptide in human serum and plasma. This assay is used as an aid in the diagnosis of individuals suspected of having heart failure. It can be used as an aid in the diagnosis of acute decompensated heart failure (ADHF) in patients presenting with signs and symptoms of ADHF to the emergency department (ED). The test is further indicated for the risk stratification of patients with acute coronary syndrome and heart failure. The test may also serve as an aid in the assessment of increased risk of cardiovascular events and mortality in patients at risk for heart failure who have stable coronary artery disease. 

 

Source: Roche cobas Elecsys proBNP II method sheet, V 3.0 2023-08 

Methodology

Two-site immunoenzymatic (Sandwich) assay (Roche Cobas e801)

Sample Type

Preferred Sample Type
Light green top - Plasma 

 

Acceptable Sample Type(s)
Dark green top - Plasma
Lavender top - EDTA Plasma

Centrifuge: Yes

Specimen Minimum Volume

55 uL with insert cup

Specimen Stability

Temperature Time
Ambient (20-25°C) 3 days
Refrigerated (2-8°C) (store) 6 days
Frozen (<-20°C) 2 years*

Separate serum/plasma from cells within 2 hours.

*Freeze only once!

Reference Ranges

Normal Range
<75 years 0 - 125 pg/mL
>75 years 0 - 450 pg/mL

 

Technical Range
36 - 35,000 pg/mL

 

Rejection Criteria

Hemolysis Index >1,000
Icterus Index >50
Lipemia Index >1,500, ultracentrifuge

 

Availability

Performed STAT
24/7 Yes

 

Performing Laboratory

MultiCare Yakima Memorial Hospital Laboratory

Lab Department

Chemistry

CPT Code

83880

LOINC

33762-6 Natriuretic peptide.B prohormone N-Terminal [Mass/Vol]