Opposition Leader Peter Malinauskas announced plans to inject $12 million into upgrading the Port Pirie Hospital's emergency department if Labor wins the next state election.
The announcement was part of Labor's plans to spend $33.1 million on health across the Spencer Gulf region.
"We know that the Port Pirie Hospital is due for a substantial upgrade," Mr Malinauskas said.
"I am very excited to be announcing a $12 million upgrade focusing on the emergency department."
He said Labor will redirect funding that would go towards the Marshall Government's $600 million city basketball stadium into health, with $100 million of that being put aside for regional areas.
Port Pirie Regional Council welcomed the plans to upgrade the hospital.
"$12 million to upgrade the Port Pirie Hospital emergency department is a fantastic first step," Mayor Leon Stephens said.
"As a community we have been advocating for better access to health services in Port Pirie for some time and Labor's Health Plan for the Upper Spencer Gulf recognises the commitment needed to our region.
"Councils State Election Platform released late last year called for funding be allocated to support a planned approach to the upgrade of infrastructure, equipment and services provided by the Regional Health Service, and that's what we see from this announcement."
Mr Malinauskas added that Labor, if elected, will fund 30 new ambulance officers to be employed in the Upper Spencer Gulf across towns including Peterborough, Wallaroo, and Whyalla.
"When someone calls 000 in our regions, crews have to travel a long way," he said.
"If there are not enough resources on the ground, we can see very substantial towns being left uncovered in the event of a life-threatening emergency. That can not be allowed to continue.
"The ambulance service has been crying out for more resources."
Ambulance Employees Association representative for the Port Pirie station and the Mid-North Anthony Bates said extra resources could be life-saving.
"We ambos out here in country South Australia and the Spencer Gulf, we are required to travel hundreds of kilometres to get to our patients," he said.
"While we are away from Port Pirie, for example, that leaves the town empty with less resources here.
"More staff means we can get to the community quicker and we can have safer staffing levels and a safer community."
Mr Bates said ambulance staff in Port Pirie are facing extreme fatigue and working up to 96 hours in a row.
"I was speaking to one of my colleagues who said, many years ago, Pirie ambulance station was a sleepy hollow and now we can do up to six to 10 jobs a night and basically have two crews out on the road," he said.
"We have crews coming back at eight o'clock in the morning completely exhausted. We need some help out here.
"We would just like to see more resources in country South Australia generally, so we can increase our capacity to provide a safe community for people in this electorate."
Deputy Premier Dan van Holst Pellekaan said "the proof is in the pudding" and that people should be wary of election promises.
"In Labor's last term of government, it spent a mere $14 million on regional health infrastructure, just $3.5 million a year," he said.
"By way of contrast, the Marshall Government invested $70 million in its first three years and has committed more than $200 million to regional health infrastructure."
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