I am Dr. Arun and will be helping you today.
I am sorry that your question was unanswered for long.
You would need following (if not already done);
1) Hepatitis profile
2) Magnetic resonance cholangiopancreaticography (MRCP)
3) HIDA scan
4) Ultrasound and CT scan of abdomen.
These should be able to identify the raise in bilirubin levels.
Even a mild grade infection like stomach flu or any other virus sometimes may raise the level temporarily.
You need to stop alcohol if you drink. Also stop any medications, herbs, supplements, if you do.
Having said that, do not worry as;
1) The liver function tests may be abnormal even in patients with a healthy liver.
2) Studies evaluating the clinical significance of these abnormalities have demonstrated that serious underlying liver disease is uncommon in many individuals.
3) Just this level of elevation is found in almost 10% of cases without any disease.
4) Only a persistent increase of two fold for three months (tests repeated at monthly interval) will need further studies or invasive investigations like liver biopsy.
5) The other causes should be observed if there is no history of any medications, alcohol abuse and investigation for hepatitis B and C are normal and there are no medical evidence of the following diseases (which can elevate these enzymes); muscle disorders, thyroid disorders, celiac disease, adrenal insufficiency and anorexia nervosa.
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