Dr TSO, with her over 40 years nursing background, has been in senior executive positions in Hong Kong Hospital Authority for over 25 years. During the period, she has been appointed as the General Manager of the Queen Elizabeth Hospital and concurrently the Cluster General Manager of the Kowloon Central Cluster Hospitals.
The most significant part of her nursing career is, she has effectively and efficiently led the healthcare teams in meeting the biggest challenge of SARS in 2003 and has won the international quality award on a joint community care project in 2010. She was then , upon her retirement, being head-hunted by the Founder of Hospital Corporation of America (HCA) to become a CEO to commission their first International Hospital in Ningbo, PRC under China Health Corporation (CHC).