B Type Natriuretic Peptide (BNP) Test
- Category
- Heart
- Sample
- Blood sample taken from a vein in your arm
- Reports () Terms & Conditions Report time varies with time of sample collection.
- In 3 days
- Fasting
- No Fasting
- Age
- 5+ Years
What Is This Test?
Measures B-type natriuretic peptide (BNP), a hormone released by the heart when it is under strain.
Why this test is performed?
Helps diagnose heart failure in people with breathlessness or swelling, assess its severity and monitor treatment.
Who should take this test?
Adults over 30, people with high BP, diabetes, obesity, smoking or a family history of heart disease; chest pain or breathlessness (seek urgent care).
Test Preparation
No fasting needed.
Medical disclaimer · for information only, not medical advice
This article is for general information and education only. It is not medical advice, does not create a doctor–patient relationship, and is not a substitute for consultation with a qualified doctor who has assessed your individual situation. Never delay seeking medical advice because of something you have read here.
In a medical emergency, call 112, or 108 for an ambulance where that service operates, or go to your nearest emergency department. If you are in mental health distress, Tele-MANAS is free and available 24×7 on 14416.
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- Report time: In 2 days
- No fasting
- Report time: In 2 days
- No fasting
- Report time: In 2 days
- No fasting
- Report time: In 2 days
- Fasting 10–12 h
Frequently asked questions
A normal value makes heart failure an unlikely cause of breathlessness.
No fasting is needed. You can eat and drink normally unless your doctor has advised otherwise.
Blood sample taken from a vein in your arm.
Usually within 31–55 hours after the sample reaches the lab. You will receive the report online.
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