An elderly nursing home resident has allegedly been sexually assaulted by an employee of the care facility in Sydney’s south-west. The woman, in her 70s, was allegedly assaulted by a nursing assistant at the home at Padstow Heights on Sunday. Nursing home employees alerted police to the incident. A 47-year-old man was arrested at a home in Heckenberg about 3.30pm on Thursday. He was charged with aggravated sexual assault and refused bail. The nursing assistant is expected to appear at Liverpool Local Court today.