Western Australian health workers will walk off the job from next week, launching industrial action after the State Government failed to make a new pay offer.

Rolling stoppages have been announced after a vote last week, in which union members elected to give the Government until Friday July 5 to make its revised offer.

Reports say there has been some debate as to who should actually do the negotiating, with Health Minister Kim Hames saying Minister for Commerce Michael Mischin was in charge.

Staff at some of the state’s biggest hospitals are looking for pay increase over the 2.75 per cent offered.

Health Services Union WA secretary Dan Hill has told The West Australian that health workers are angry at the Government’s inaction, despite deeming its own politicians worthy of a 3.8 per cent rise.

“Our members feel completely devalued by this Government and do not understand how it can grant doctors, nurses and support staff wage increases of around 4 per cent and then expect them to accept 2.75 per cent,” he said.

Reports say there will be 12-hour stoppages from 6am to 6pm at Sir Charles Gairdner Hospital on July 15 and Royal Perth on July 17. Action at other hospitals is expected to follow shortly after.

“Our members see industrial action as a last resort, and they have not taken it in 13 years,” Mr Hill said.

“But they feel they have to stand up for an equal pay increase and refuse to be treated as second-class citizens in their workplaces.”

The union, whose members include physiotherapists, pharmacists and social workers, expects that only out- patient services and elective surgery might be cancelled, with emergency services to remain unaffected.

Meanwhile, Community and Public Sector Union (CPSU) is also seeking a better pay deal for its members, which will vote on July 11 over the same capped raise offered to Health staff.

There is concern for health workers coming from moves at the federal level too.

At an anti-budget rally in Canberra over the weekend, Lee Thomas, federal secretary of Australian Nursing and Midwifery Federation, said the LNP government was planning a “devastating attack” on the health system on several fronts, including with a co-payment for doctors' visits.

“It does signal the beginning of the end for our universal health system called Medicare,” she said.

“Nurses and midwives tell me every day that they already have seen people who are delaying going to the doctor because they’re struggling to afford it.

“They are already delaying putting off having their prescriptions filled and, of course, what this means is those delays are only going to get worse.

“They’re going to get worse as people get sicker and ultimately, in a very bad state of health, are going to turn up at our emergency department putting even more pressure on the public hospital system. This is a disgrace.

“Things in our health system are going to get very, very bad and we are all going to be affected by it.

“There is no way we can afford to go down the American style user pays system in this country, Mr Abbott has no electoral mandate to make these changes.

“We must campaign against these charges, taxes and cuts - lies, cuts and broken promises.”