Several substances in your blood that are ‘markers’ or signs that you could be at risk of developing PAH.1
What to expect:
A doctor or nurse will use a small needle to collect a blood sample from you. They will let you know if you need to do anything to prepare, such as not eating (fasting) etc.
Understanding your results:
Your doctor will look for a number of biomarkers in your blood.
One biomarker your doctor will look for is a protein called N-terminal pro-brain natriuretic peptide (NT-proBNP). This biomarker is linked to heart function and helps to predict PAH.1