Dr Liu graduate from University of Tasmania and previously held a degree in Engineering. She completed her FRACP training in respiratory medicine in Westmead Hospital and Concord hospital, and had previously worked in Sutherland Hospital, Wollongong Hospital and Nepean Hospital. Dr Liu has a special interest in obstructive apnoea, sleep disordered breathing and respiratory failure, having presented at national and international conferences.
Dr Liu is also actively involved in public health with the care of tuberculosis patients at St George Public Hospital, and as a member of the Safe Use of Medicines Committee at St George Hospital.