I have hypersensitivity pnuemituts fibrosis and recticular nodualar opacities bilateral lower and middle lobes biopsy done. stage 3 heart failure 3 liter cont flow at rest and 4 sleeping or with activity O2. partial right bundle branch block. ppalpatations dyspnea at rest with oxygen and a pulse that reaches 180 bpm Plus usually in the morning when my oxygen is at its lowest my SpO2 drops to 50 percent usually sleeping. should i ask my CHF doctor about a device. Had ARDS and partial RV collapse and Partial Pulmonary artery collapse with anaphalaxis and cardiogenic and sepsis ( Allergic to sulfa drugs did not know Bacterin was while taking ) IE the shock and ards and ALL. do i need a device and mean survival time at the rate my lungs are declining i figure a year or 2. Am I close My forced DLCO is 42% and my VO2 max is 17.3 my BP is stable around 120/80 pulse is always above 100 and My FVC is 55% Of predicted. Also having extra heart sounds upper right region with a left axis deviation oh im 41 year old male