The unfolding scandal stemming from an Israeli influencer's since-deleted social media video involving two staff at a south-west Sydney hospital has broken trust in the public health system, NSW Premier Chris Minns conceded.
"We cannot have examples of naked racism from public servants exhibited on social media or anywhere," he told reporters on Thursday.
"If you think that there's going to be some kind of political layer or lens when you walk through an emergency department, well that's a disaster for our public hospital system."
But the premier said he strongly believed the video and the views expressed in it by the two nurses were an "aberration".
"I can't promise that every single health care worker doesn't harbour the same hate or the same views, but what I can say is that the evidence is that it's a small, small fraction," Mr Minns said.
A comprehensive review into the incident would take place, he added.
The comments have been condemned by political, medical and community leaders and sparked urgent audits of patient care at Bankstown-Lidcombe Hospital.
NSW Police have seized CCTV footage from the hospital and are expected to provide an update on their investigation later in the day.
Earlier, Health Minister Ryan Park said a "conversation" would happen on Thursday with hospital staff to make clear such comments were unacceptable and to ensure people feel confident to seek care if they were sick or injured.
"If we have a cultural issue or challenge in certain hospitals, then we're going to get to the bottom of it," he told Nine's Today show.
An initial examination by NSW Health found no evidence the care of any Israeli patients had been affected, but a more thorough investigation will follow.
The male nurse appearing in the video posted online by Israeli influencer Max Veifer is trying to "make amends for what has happened", his solicitor Mohamad Sakr told reporters.
"My client sends a very sincere apology to not only that individual but to the Jewish community as a whole," Mr Sakr added.
The nurse separately told reporters the incident was a misunderstanding and a mistake.
NSW Opposition Leader Mark Speakman, a former state attorney-general, said he believed the nurses could be prosecuted for publicly threatening violence on religious grounds under existing incitement laws.
The nurses have been stood down over the comments, made while using a website for random video chats.
While an investigation was still underway, Mr Park said he wanted to ensure neither could work in a public hospital ever again.
Mr Veifer posted the video, containing visible edits, to social media early on Wednesday morning.
He has since been contacted by NSW Police as part of their investigation.
The male nurse, identified as an Australian citizen and former Afghan refugee with six years of nursing experience, falsely claimed in the video chat with Mr Veifer that he was a doctor before telling him he was "going to go to" hell.
The female nurse said, according to the video, she would refuse treatment or kill Israeli patients who attended the hospital.
The NSW Nurses and Midwives' Association scrapped plans for a rally outside state parliament for better pay and conditions, instead holding a "solidarity action" against hate speech.
Union officials have condemned the nurses' comments, saying they don't represent the broader profession.
