A consultant at Belfast Health Trust said he was confident the Royal Belfast Hospital for Sick Children provided the “highest standard of care”.
Dr Paul Jackson said improvements had been made after a critical assessment from health experts who visited the hospital 10 months ago.
It said the hospital was under-staffed, in need of redevelopment, cramped and falling below standards.
Dr Jackson said the team had acted on the recommendations made.
It emerged on Monday that the hospital board and health trust invited independent health assessors (IMAS) to carry out an inspection in March 2010.
Whilst there was some praise in the report, it was highly critical and called for issues to be addressed urgently.
One of the authors of the review warned health chiefs: “I fear that there is a very real risk that children will come to harm if changes to staffing, facilities and processes are not made.”
Dr Jackson said a team had been put in place to action the recommendations and improve the situation.
“We took some interim measures, employing extra nurses and doctors and we are working very hard,” he said.
“I am completely confident that if you took your child into the hospital you would receive the highest standard of care.”
On Monday Health Minister Michael McGimpsey announced that the £300,000 refurbishment at a ward on the Royal Belfast Hospital for Sick Children had begun.
Work began on 19 January and is expected to take eight weeks
The minister said: “I welcome the news that the plans for refurbishing the ward are finalised and that work has now begun.
“£300,000 is a substantial investment that will bring real benefits for patients, staff and parents.”
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