Hoping someone can shed some light on a few questions I have. My father, age 81 and a former long-time smoker, is suffering from end-stage COPD, emphysema, and kidney disease. Perhaps some short-term memory loss as well (currently being investigated.) My mom, his primary caregiver, told me over the weekend that they visited my father's pulmonologist last week and my father's lung capacity dropped to 14%, down from a mere 18% only three months ago. My questions:
Is this steep of a drop typical? Is he declining rapidly? I know none of you can predict the future, but what does this mean for his longevity?