Estimated life expectancy?

Hi. I'll just get straight to the point. My mother isn't young anymore, and the more I learn about her health, the more concerned I get,so I was thinking I just need to face reality, and ask the big question, How much longer does she have? she is 47 years old, STILL smokes half a pack a day despite being diagnosed with COPD emphysema for 4 years (which she uses a c-pap and nebulizer for), deep vein thrombosis, congestive heart failure, type 2 diabetes,  high blood pressure, asthma, and has had a pulmonary embolism.
Please, an estimate of her years left is what I'm looking for, no preaching on how to change her, I've already tried. I already know I'm going to lose her to one of these things, So if you could just help me be prepared for WHEN, I would be so grateful.