@A myPHteam Member this explanation from the PAH Initiative website (www.pahinitiative.com) explains Pro-BNP well:

When your heart works harder than usual, it releases high levels of molecules found naturally in your body. These include the hormone called B-type natriuretic peptide, or BNP, and its precursor, NT-proBNP.

If this test shows high levels of BNP, it means your heart is straining and working harder than normal. The strain may be caused by narrow blood vessels in the lungs because of PAH.

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A myPHtea...

PAH Initiative Official Website

https://www.pahinitiative.com

Hi Shelia2. I was diagnosed in 2020 and I have had 2 heart caths. I'm on a schedule to have an echocardiogram every 6 months but I don't expect another heart cath unless something shows up on the echo or symptoms change.

What I'd the Pro-BNP test for, I assume it's blood work but what does it look at/for? Thanks I think I'm not being at all proactive with my health.

My doctor told me to expect a RHC every 6 months to a year. My first was October 2022, second was September 2023. Because I've recently started showing worsening symptoms, I will have one in the next few weeks. The procedure, although considered invasive to an extent, is a relatively easy, accurate way to gauge how well my medications are working. I also have an echo done at least annually and labs for Pro-BNP drawn every 3 months. Between my PCP, rheumatologist, and cardiologist my blood counts as well as liver and kidney function are well monitored every 2-3 months.