What sample is required?
The determination is made from a venous blood sample.
Is some kind of prior preparation necessary?
For this test you do not need any special preparation.
Why do the analysis?
To detect, diagnose and assess the severity of congestive heart failure (CHF).
When to do the analysis?
If there are symptoms of heart failure, such as shortness of breath and fatigue, or if you are being treated for heart failure.