Two NSW Health nurses have been stood down after video emerged showing them allegedly bragging about killing and refusing to treat Israeli patients.

"When your time comes, I want you to remember my face so you can understand you will die the most disgusting death," she says, before adding that she won't treat Israelis.

"I won't treat them, I will kill them," she says.

The man then tells Mr Veifer he sends Israelis to Jahannam as he makes a threatening gesture.

"You have no idea how many Israeli dog[s] came to this hospital and I send them to Jahannam," he says.