Max, welcome to the forum. You are in a tough situation, since you are not family nor do you have Power of Attorney or Medical Advocacy. Since HIPAA regulations went into effect, the medical profession has become almost paranoid about releasing information to ANYONE. She would have to give express permission to nursing staff and doctors to allow you to get info. That said, I suggest you read through some of the older posts here, specifically those related to alcoholism. You will learn a lot. In addition, there is more detailed information in the folder at the top of the forum page titled Hepatitis Resources, which will let you know what to expect.
If she continues drinking, she will accelerate her liver disease and her demise. Since she is in denial, there doesn't seem to be much hope of her stopping anytime soon. If she doesn't want to stop, she will continue to drink until it become physically impossible for her to do so. That is the harsh reality. You can talk to her and she may "yes" you to death, but if she doesn't really want to stop drinking it won't mean a thing. I can tell you this as both the daughter of an alcoholic who died an alcoholic, and as a sober one myself with 23 yrs. of sobriety, thanks to AA.
Furthermore, she will not even be eligible for transplant evaluation until she has been sober for a length of time (usually at least 6 mos.) in AA or alcohol counseling, which has to be documented. A MELD score is usually calculated during evaluation for a transplant. However, there is an online calculator if you know certain info to plug in: http://www.unos.org/resources/MeldPeldCalculator.asp?index=98
If the diuretics and low-sodium diet don't work to reduce fluid retention, they may drain her abdomen (paracentesis.) Sometimes a TIPS procedure is also done (basically a stent is placed to reroute fluid from the abdomen.)
Her landlord/friend can do his part by refusing to supply her with alcohol (not saying that he has been, but simply that she may ask him to get her some, especially when she is discharged.)
As to your question of whether an alcoholic should be given oxycodone, a person who is in recovery should not be given any potentially addicting drugs, but if she is in pain and isn't drinking at the moment in the hospital, then I could see how the doctors would be okay with it.
I know this isn't very hopeful, but perhaps it will help you in some way.
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