Blood Collection of Patient Presenting in the ED and Prescribed a BNP

A Blood Collection From Patients Presenting in the Emergency Department and Prescribed a Brain Natriuretic Peptide (BNP) Laboratory Test

Plasma specimen collected from patients presenting in the Emergency Department (ED) with or without Heart Failure (HF) and prescribed a BNP.

Plasma samples are collected from a minimum of 400 subjects. Specimens are used to confirm the currently accepted BNP cut off as and aid in the diagnosis and assessment of HF.

Stored specimens for future use in BNP assay development.

Inclusion Criteria:

• Males and females >21 years of age
• Able to understand and willing to provide informed consent
• Present in to ED
• BNP test requested

Exclusion Criteria:

• Males and females< 21 years
• Unable to provide informed consent
• Not presenting to ED
• hemolyzed sample