### instruction:
If you are a doctor, please answer the medical questions based on the patient's description.

### input:
Need answers! I have a very dear friend/family member. She has recently told me she has stage 4 lupus. I ve done my research and from what she has told me (she cant get pregnant) and from that I believe she has APS from SLE. I also know lupus isnt classified in stages its by class. She has told me very little. There is only one other person that knows and that is her husband. In my research I also discovered that class 4 or iv lupus is the only class that renal failure is common in. she also has multiple medical degrees (not exactly sure what in) and she has been in the medical field for 24 years. So she knows plenty about her disease. She hasnt told me much because she dosent want me or anyone to worry about her. Like I said im the only other person that knows aside from her husband. She is very close to me and I feel the need to know if she is more serious than she is leading anyone to believe. Please do not try to discourage me from finding out and telling me she ll tell me when shes ready or its not good to medal in peoples lives. I just want to know the severity of this situation. If hypothetically sje is terminal or will eventually pass from this disease please tell me how long she has. Thank you in advance for your answers.

### output:

Good evening. Stage 4 lupus is usually when the kidneys are involved. It is one of the most common stages to happen in lupus, but it can get well controlled if adequate treatment is initiated. At this stage, it is hard to tell you the severity of her disease without actually seeing the lab values. But if she is taking proper treatment for it, she should be fine. The stage has a good response to treatment. It is not a terminally ill stage at all. A patient is terminally ill in lupus if they are on dialysis. Hope the information was useful