Test Results For:
Brain Natriuretic Peptide (BNP)
Test Overview
- Test Name
-
Brain Natriuretic Peptide (BNP)
- Test Code
- BNP
Short Description
Brain Natriuretic Peptide (BNP)
Test Name
Brain Natriuretic Peptide (BNP)
Test Code
BNP
Category
Immunoassay
TAT
Main Lab:
6
Hour(s)
Family Site:
<8hrs, <6hrs
Specimen(s)
1 x Venous blood - 5 mL Tube - Lavender - EDTA Plasma
Specimen Type
EDTA Plasma
Specimen Format
Tube
Specimen Colour
Lavender
Specimen Volume
5 mL
Sampling Order
4
Origin
Venous blood
Collection Time after baseline
-
Transport Temperature
-20°C
Accepted Other Specimens
-
TAT
Main Lab:
6
Hour(s)
Family Site:
<8hrs, <6hrs
Test Stability
Room Temp:
4 Hour(s)
2–8°C:
24 Hour(s)
Clinical Interest
Brain Natriuretic Peptide (BNP) is a hormone mainly produced by the ventricles of the heart in response to overstretching of cardiac muscle cells (myocytes).
It plays a key role in cardiovascular homeostasis by promoting natriuresis (excretion of sodium into the urine), diuresis (increased urine production) and vasodilation, thereby reducing blood volume and pressure.
BNP levels are particularly high in patients with heart failure, making BNP measurement an essential tool for diagnosing and assessing the severity of this condition. Elevated BNP levels correlate with increased ventricular pressure and volume overload, typical of heart failure.
Elevated BNP levels can help differentiate between cardiac causes of dyspnoea (breathlessness) and non-cardiac causes, such as lung disease.
Clinical Information Required
-
Patient Collection Note
-
LOINC Code
934-4, 30934-4
Outwork
No