To answer your questions:
1) Most likely these results are due to alcohol. Other causes can include various liver diseases including
fattyXanthoma liver, hepatitis, any medication side effect, or a liver mass.
2) Prolonged alcohol abuse will lead to permanent liver damage and eventually cirrhosis (i.e. irreversible liver damage).
3) Further tests are needed to determine the extent of liver damage. An ultrasound would be a reasonable next step. Biopsy can also be considered if the results are not-revealing.
4) Signs of liver failure include the following: difficulty clotting, ascites (i.e. fluid in the belly), inability to metabolize, encephalopathy (i.e. change in mental status due to inability to metabolize), or varices (i.e dilated veins increasing the risk of upper or lower GI bleeding). These are just a sample of the many complications.
5) That would depend on the extent of the damage. If the damage has not been severe, then there may be no irreversible damage.
6) Other than cirrhosis, other causes of death associated with drinking are cancers of the mouth, esophagus, pharynx, larynx, and liver combined; breast cancer in women; and injuries and other external causes in men.
Followup with your personal physician is essential.
This answer is not intended as and does not substitute for medical advice - the information presented is for patient education only. Please see your personal physician for further evaluation of your individual case.
Thanks,
Kevin, M.D.