The Queensland Opposition says an 89-year-old man has been gnawed by mice while sleeping in a Darling Downs nursing home.

Opposition spokesman Ray Hopper says the war veteran was found covered in blood by nursing staff in the Karingal nursing home at Dalby on Anzac Day.

"The family of this gentleman contacted me very, very upset," he said.

"He'd had the top of his ears badly, badly chewed, his neck was chewed, his head was chewed, he was covered in blood.

"It's just unacceptable, - I just can't believe it."

Mr Hopper says Queensland Health should have done more to prevent a mouse plague at the nursing home.

"I think Queensland Health should have done a lot more than they've done, a lot quicker than they did.

"I mean where are the mice getting in - this is a new building? What is going on?"

Queensland Health has rostered on extra staff and pest control agents since the weekend to kill mice at the home.

Traps are being emptied twice a day to stop the infestation.

However, federal Ageing Minister Justine Elliott says there is no need at the moment to evacuate the home's residents.

She says her Department is monitoring the situation.

"There has been action taken in terms of the eradication measures that are in place - we are closely monitoring it," she said.

"If we ever do find a situation where we do find it's required to evacuate people, we do that very, very swiftly- that's our main concern but we are closely monitoring the situation."

She says she is concerned about the situation.

"The agency will remain there and monitor it very closely because this is a real concern in terms of the situation there and we'll review that and see if future action should be taken.

"But my immediate concern is for the safety and the health and the welfare of the people in that home.

"I was as disturbed as anyone to hear of that."