Dear Jack,
Asymptomatic elevations of liver tests are a frequent cause for consultation to a gastroenterologist or hepatologist. There are many possible causes. Fatty liver, alcohol related liver disease, problems with the bile ducts are among the common cuses for these elevations. Although we usually do nt find a serious cause for this elevation, it is necessary to do some tests including an ultrasound of the liver and bile ducts. Sometimes, a liver biopsy is needed for a definitive diagnosis. I suggest that you talk with your doctor about seeing a gastroenterologist.
The elevated bilirubin is an interesting finding. Among the possible causes for this finding is Gilbert's disease a condition in which there is elevated bilirubin in the absence of structural liver disease. Gilbert's disease is related to a shortened red cell survival and an inability of the liver cells to efficiently take up bilirubin. This condition does not have any serios sequela.
This information is presented for educational purposes only. Ask specific questions to your personal physician.