Mother is back in the hospital

My sister-in-law phoned tonight to let me know that my mother is back in the hospital again. She's had fluid in her lungs for several days and they believe she has pneumonia now. Once again, she had too much trouble breathing and they brought her into the emergency room today. She is in CCU now with Adela, her care-giver, at her side. Some time late tonight, she will have her dialysis treatment at the hospital. I don't think they can do anything to clear the fluid from her lungs other than try to help her body do it. Hopefully, she will get some sleep tonight.