The Queensland government has set up a hotline amid allegations of botched operations leading to preventable deaths at Caboolture Hospital.

Queensland's health minister has set up a complaints hotline amid allegations of botched surgeries and preventable deaths at a major hospital.

Concerns have been raised about the quality of care delivered at Caboolture Hospital, north of Brisbane.

Allegations made by unnamed current and former staff include that three people have died as a result of botched operations in the past year, and that local GPs actively divert their patients away from the hospital.

Health Minister Yvette D'Ath has told parliament a hotline will open at noon on Tuesday to deal with complaints from patients or their families.

The hospital is currently waiting for the Royal Australian College of Surgeons to formally re-accredit its surgical program for another four years.

The Opposition fired question after question at the health minister during Question Time on Tuesday, including whether surgical deaths at the Caboolture facility were fully investigated.

Ms D'Ath said the Opposition should be aware that not every death is investigated by the coroner.

She noted one of the three deaths reported by the media was referred to the coroner who chose not to investigate.

"They come in here, asking these open-ended questions, which do make an imputation on the health system," the minister told parliament.

She said there were many formal channels to report genuine complaints, and that they would be investigated.

"But don't simply come in and say 'have any of these deaths have been investigated', putting out there that somehow there hasn't been, that there's been unexplained deaths that have been, you know, shoved under the carpet," Ms D'Ath said.

In a statement issued on Tuesday, the Metro North Health service said patient safety was its priority and it was "confident in the safety and quality of care at Caboolture Hospital".

It said concerns could be raised via the hotline on (07) 3647 9559. Patients can also ask the health ombudsman to review their care.

The health minister also used Question Time to detail the "incredible" strain the health system has been under as a result of the pandemic.

She said bed capacity was stretched with each new outbreak and things like elective surgery went out the window.

At the peak of the last outbreak, more than 400 health workers were forced into quarantine because they'd potentially been exposed to COVID-19.

"As of today, because of the outbreak that started on the 31st of July, we still have some health workers in quarantine ... because they are family members of the Indooroopilly cluster," Ms D'Ath said.

She said she did not want Queensland to end up like NSW and Victoria, where people were being turned away from hospital and people who were being managed at home by the health system were dying.

"One in five have actually contracted it while they were in hospital and then died as a consequence," Ms D'Ath said.

"This is what we have fought for 19 months to stop happening.

"We've stockpiled, we've trained, we've converted and transitioned our hospitals to have these negative pressure rooms, to do everything we can so that people don't die at home, and people don't get turned away who are positive patients, an we don't run out of ventilators."