@Cathln Hi. I am so sorry to hear that you lost your son. I cannot imagine the pain and heartache of something like that. As for the H.P., I will have to investigate that. I know next to nothing about it. I will get back to you on that. I don't recall what tests were performed for my h.p. diagnosis because I had so many tests done from morning until 4:30 every day for two weeks. That was in 2016 when I was being pre-qualified tested for a lung transplant. I will get back to you on the p.h. info.