There is a pss test for congestive heart failure. Is this likely in your pal's case?
Hana
I've had a couple of dogs with congestive heart failure. the best treatment is only available to vets.
The only thing that I could find relating to PSS is Progressive Systemic Sclerosis which is mentioned in Sjogren's Syndrome.
Sjögren’s syndrome can occur alone (primary Sjögren’s syndrome) or secondary to other well-defined autoimmune diseases such as rheumatoid arthritis (RA), progressive systemic sclerosis (PSS), polymyositis (PM), and Systemic Lupus Erythematosus (SLE).