The Health Services Union wants a guarantee Hunter communities won't be left without ambulance cover.
It comes after paramedics from Murrurundi and Singleton were called to the Scone Equine Hospital on Friday to treat a woman who'd been kicked in the head by a horse.
The Scone ambulance crew had been diverted to cover a local horse racing meeting.
The union is calling for a freeze on providing crews at race meetings until it's satisfied the region's ambulance cover is not being compromised.
