COPD Patient Suffering From A Flare Up And Possibly Pneumonia

My mother who has COPD is suffering from a flare up and possibly, because of her symptoms, possibly pneumonia. No XRays or blood tests have been done since she is on home hospice. She got admitted because of CHF. They won't run any tests because she is a hospice patient. I don't agree, but then again don't want to take her to the hospital. She is on her second antibiotic, and it has been already 7 days since she started them. However, her cough sounds worse and coughed more at night. I can hear the phlegm, and she can not get it out. She has been sleeping for about 2.5 hours and makes a sort of a coarse gargling sound on and off! I am worried since I have read about the rattling death sound:( Please advice! I already nebulized her at 3 am, and I also gave her 0.25 ml of morphine at 11 pm last night and at 3 am because I was told that morphine would help open the airways! Very worried:(