The images were circulated in early July and published alongside stories about hospital overcrowding and ambulance ramping.
The Victorian government has released CCTV footage from Frankston Hospital showing people in union Code Red industrial campaign t-shirts moving patients around before recording the shots.
Health Minister David Davis claims a small group of hardliners has been prepared to mistreat patients to further their own agenda.
However, the Ambulance Employees Association says there's no need to set up photos due to the high rate of ramping in hospitals across the state.

