Main objective is to determine normal values for Brain Natriuretic Peptide (BNP) levels for the Minicare BNP using K2-EDTA (ethylenediaminetetraacetic acid ) venous whole blood and K2-EDTA plasma samples from healthy subjects.

K2-EDTA whole blood and K2-EDTA plasma samples from approximately 150 normal healthy volunteer, preferably 50% men and 50% women, will be analysed using the Minicare BNP system. This will be a single-center study. The study will consist of a 1-day visit for each study subject on which screening based on a questionnaire, blood draw and discharge will occur. For each eligible subject, K2-EDTA whole blood will be collected and both K2-EDTA whole blood and K2-EDTA plasma will be analyzed using the Minicare BNP. Blood donors, presenting voluntarily at one of the Sanquin posts in, the Netherlands (e.g Eindhoven) will be checked on health status and selected based on 2 questionnaires. The collected K2-EDTA whole blood tubes from eligible subjects will be transferred from the Sanquin posts to Philips Eindhoven for Minicare BNP testing. From one subject, both K2-EDTA whole blood and K2-EDTA plasma will be measured in singleton. K2-EDTA whole blood and plasma will be measured within 6 hours after blood collection. The data obtained will be used for determination of normal values of BNP in a healthy population. Leftover plasma samples (without cells/ RNA/DNA) will be aliquoted and stored at Philips for potential future analysis/ projects). Testing will be done according to a DRAFT Instructions for use (IFU) of the Minicare BNP.

Inclusion Criteria:

• ≥18 years old
• Willing and able to sign the informed consent form (ICF)

Exclusion Criteria:

• Subjects suffering from cardiac and/or vascular disease, renal dysfunction, hypertension, cancer, Chronic Obstructive Pulmonary Disease (COPD), instable diabetes, pregnancy and extreme overweight are not allowed to donate blood.
• Subjects with a history of cardiac and/or vascular disease, renal dysfunction, cancer, COPD or instable diabetes are not allowed to donate blood.

Healthy volunteers