Premier Mark McGowan has called for an easing of hostilities between health unions and executives as the fallout continues over the death of Aishwarya Aswath.
Doctors and nurses at Perth Children's Hospital feel let down over the Department of Health's handling of the Easter Saturday tragedy.
About 150 frontline staff gathered at the hospital on Thursday to meet with Health Minister Roger Cook and senior bureaucrats.
The Australian Medical Association and Australian Nurses Federation described the meeting as "emotional", saying Aishwarya's death and the subsequent fallout had shattered staff morale.
They are furious junior staff at PCH have been told they will be referred to the medical watchdog, and have threatened to report health executives - including director-general David Russell-Weisz - if the action proceeds.
Mr McGowan on Friday urged the warring parties to resolve their differences, saying the welfare of Aishwarya's family should be the focus.
"I just want to take the heat out of this," Mr McGowan told reporters.
"I think we all need to tone down conflict and hostility in light of the sensitivities and grief this family is going through."
The premier said Mr Cook was working well with Aishwarya's parents and would not be replaced as health minister.
A report by WA's Child and Adolescent Health Service found emergency department staff missed a "cascade" of opportunities to escalate the seven-year-old girl's care as she succumbed to a fatal infection.
The McGowan government has insisted the hospital was adequately staffed.
But the unions reject that claim and argue any referrals to the Australian Health Practitioner Regulation Authority should not have been made until further investigations, including a planned inquest, had been undertaken.
"We have expressed our dismay and our disgust over that," AMA WA president Andrew Miller told reporters after the meeting.
The emergency department has been low on nurses in recent days.
Dr Miller said staff had been let down by the department's failure to provide adequate resourcing and supervision.
Mr Cook met on Thursday night with Aishwarya's parents to discuss terms of reference for an independent inquiry into the PCH emergency department.
He said no-one was being made a scapegoat.
"It was a very honest meeting and I thank the staff for their honesty. They are obviously hurting like everyone else," Mr Cook said.
"What they want to know is that we support them and I do, 100 per cent."
The CAHS executive has declined to endorse its own root cause analysis report into Aishwarya's death but is urgently implementing all 11 recommendations.
Mr McGowan noted there was commentary within the report that might not totally align with the recommendations.
ANF secretary Mark Olson accused the department of wanting to single out hospital staff to draw attention away from systemic issues.
"They want to find more dirt on individuals," Mr Olson said.
Aishwarya's parents have accused staff of lacking compassion but also rejected the CAHS findings, arguing a broader review of critical incidents at the hospital is needed.
They had sought to escalate Aishwarya's care on five separate occasions.
The report highlights a 30-minute period where it was left to one nurse to watch over eight waiting room cubicles as Aishwarya continued to deteriorate.
Emergency department staff had raised concerns with executives in October about the safety of children in the waiting room.
Plans for the hospital to have a triage support nurse who would check patients' vital signs did not progress after it opened in 2018.
