B-Type Natriuretic Peptide
Other names: B-Natriuretic Peptide, B TYPE NATRIURETIC PEPTIDE (BNP)
B-type natriuretic peptide (BNP) belongs to a family of protein hormones called natriuretic peptides.
These natriuretic peptides have an important role in regulating the circulation. They act on blood vessels, causing them to dilate, or widen. They also work on the kidneys, causing them to excrete more salt and water. In addition, the natriuretic peptides reduce the production of various hormones that narrow blood vessels, boost the heart rate, or affect fluid retention; examples include adrenaline, angiotensin, and aldosterone.
The net effect of natriuretic peptides is to promote urine excretion, relax blood vessels, lower blood pressure, and reduce the heart's workload. They are part of the body's natural defense mechanisms designed to protect the heart from stress. And they surge into action when they are needed most, when the heart itself is under siege.
------------------------
In general, results of less than 100 picograms/milliliter (pg/mL) are a sign a person does not have heart failure.
Normal value ranges may vary slightly among different laboratories. Some labs use different measurements or test different samples. Talk to your health care provider about the meaning of your specific test results.
------------------------
A B-type natriuretic peptide (BNP) test or aminoterminal pro B-type natriuretic peptide (NT-proBNP) test gives your provider essential information about your heart health. It helps them diagnose heart failure, so they can develop a treatment plan. It also helps them monitor how well treatments are working. Talk to your provider if you have any questions about the test results.
Lab Results Explained and Tracked
What does it mean if your B-Type Natriuretic Peptide result is too high?
Higher-than-normal levels of BNP in your blood can be a sign that your heart isn’t working as it should. It can mean that your heart isn’t pumping enough blood through your body. Since BNP is cleared by your kidneys, it may also mean that your kidneys are not functioning properly.
Symptoms of heart failure include:
- Cough that seems dry or “hacking” and gets worse when laying down.
- Difficulty breathing, shortness of breath (dyspnea) or wheezing.
- Delirium (confusion).
- Dizziness or fainting (syncope).
- Fatigue or feeling sluggish.
- Heart palpitations.
- Nausea and vomiting or loss of appetite.
- Swelling (edema) in your abdomen, legs, ankles and feet.
- Urinating (peeing) more than usual at night (nocturia).
Heart failure means your heart isn’t pumping blood as it should. It doesn’t mean that your heart has failed or stopped working entirely. If your provider has already diagnosed you with heart failure, they may order a BNP or NT-proBNP test to monitor how treatments are working.
Get emergency medical help if you have these symptoms. Heart failure is life-threatening and requires immediate treatment.
BNP levels go up when the heart cannot pump the way it should.
A result greater than 100 pg/mL is abnormal. The higher the number, the more likely heart failure is present and the more severe it is.
Sometimes other conditions can cause high BNP levels. These include:
- Kidney failure
- Pulmonary embolism
- Pulmonary hypertension
- Severe infection (sepsis)
- Lung problems
All Your Lab Results.
One Simple Dashboard.
Import, Track, and Share Your Lab Results Easily
Import, Track, and Share Your Lab Results
Import lab results from multiple providers, track changes over time, customize your reference ranges, and get clear explanations for each result. Everything is stored securely, exportable in one organized file, and shareable with your doctor—or anyone you choose.
Cancel or upgrade anytime
Article Review & Sources
All our content is backed by peer-reviewed studies, academic research, and trusted medical sources. We're committed to accuracy and transparency — see our editorial policy for details.
Laboratories
Bring All Your Lab Results Together — In One Place
We accept reports from any lab, so you can easily collect and organize all your health information in one secure spot.
Pricing Table
Gather Your Lab History — and Finally Make Sense of It
Finally, Your Lab Results Organized and Clear
Personal plans
$79/ year
Advanced Plan
Access your lab reports, explanations, and tracking tools.
- Import lab results from any provider
- Track all results with visual tools
- Customize your reference ranges
- Export your full lab history anytime
- Share results securely with anyone
- Receive 5 reports entered for you
- Cancel or upgrade anytime
$250/ once
Unlimited Account
Pay once, access everything—no monthly fees, no limits.
- Import lab results from any provider
- Track all results with visual tools
- Customize your reference ranges
- Export your full lab history anytime
- Share results securely with anyone
- Receive 10 reports entered for you
- No subscriptions. No extra fees.
$45/ month
Pro Monthly
Designed for professionals managing their clients' lab reports
- Import lab results from any provider
- Track lab results for multiple clients
- Customize reference ranges per client
- Export lab histories and reports
- Begin with first report entered by us
- Cancel or upgrade anytime
About membership
What's included in a Healthmatters membership
Import Lab Results from Any Source
See Your Health Timeline
Understand What Your Results Mean
Visualize Your Results
Data Entry Service for Your Reports
Securely Share With Anyone You Trust
Let Your Lab Results Tell the Full Story
Once your results are in one place, see the bigger picture — track trends over time, compare data side by side, export your full history, and share securely with anyone you trust.
Bring all your results together to compare, track progress, export your history, and share securely.
What Healthmatters Members Are Saying
We implement proven measures to keep your data safe.
At HealthMatters, we're committed to maintaining the security and confidentiality of your personal information. We've put industry-leading security standards in place to help protect against the loss, misuse, or alteration of the information under our control. We use procedural, physical, and electronic security methods designed to prevent unauthorized people from getting access to this information. Our internal code of conduct adds additional privacy protection. All data is backed up multiple times a day and encrypted using SSL certificates. See our Privacy Policy for more details.