What test would prove most helpful in diagnosing the patient\'s underlying disease?

A 16-year-old Caucasian female presents with Parkinson-like symptoms. Serum analysis shows increased levels of free copper and elevated liver enzymes. What test would prove most helpful in diagnosing the patient’s underlying disease?

1.Serum detection of anti-myelin antibodies
2.Slit lamp examination
3.Vitamin B12 test
4.CT scan
5.Reflex test

Summary