My Shih Tzu may have a blocked bile duct. How is this usually treated please?

My 5 year old Shih Tzu has just had a blood test because she keeps having episodes where she starts staggering into things and losing balance. Blood tests have given abnormal liver and kidney functions and my vet feels it may be a blocked bile duct. She goes in tomorrow for more blood tests and an ultrasound scan. I would like to know what may be the possible outcome and if the original diagnosis is correct how is this usually treated please?

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