Prime Minister Tony Abbott has declared he is "very confident" he will still be leader this time next week following a crucial party room meeting on Tuesday.

New South Wales Liberal Senator and former chief of staff to John Howard, Arthur Sinodinos, said yesterday his support for Mr Abbott was "not unconditional".

And when asked on Sky News if Mr Abbott would remain Prime Minister, he replied: "Comrade, come and ask me next week".

Mr Abbott was questioned by reporters in Melbourne this morning about how confident he was that he would still be leader this time next week.

"I am very confident. I know my colleagues, I trust my colleagues, I respect my colleagues," Mr Abbott told reporters.

"I know my colleagues all got elected to end the chaos and they are as determined as I am to make sure that that's exactly what we do."

However, Mr Abbott's leadership remains under significant pressure, with 10 MPs telling the ABC they would support a spill motion in Tuesday's party room meeting.

Mr Abbott shifted the focus this morning onto national security and announced that he wanted laws passed by the middle of March that would force telecommunications companies to keep metadata for two years.

But he is continuing to be dogged by persistent leadership questions.

Mr Abbott has again stressed he has the "full and unanimous support of the Cabinet" following two days of meetings.

One of the Prime Minister's strongest supporters, Minister Kevin Andrews, labelled his colleagues criticising the PM in the media as "self-indulgent" and "self-defeating".

"They should be talking to the Prime Minister, the Deputy Prime Minister, myself and Cabinet about what their issues are. That's the constructive way of doing things, that's the adult way," Mr Andrews told Radio National.

Senior Government minister Andrew Robb suggested Cabinet would make significant announcements on Tuesday in a bid to quell backbench unrest.

"If we can demonstrate next week in the party room etcetera that some serious steps are being taken, I think the Government then needs to be given, the leader needs to be given clear air to demonstrate that we can start to turn things around," he said.

Queensland LNP backbenchers Mal Brough and Andrew Laming both called on the senior team to scrap the planned GP co-payment.

Mr Abbott said the Government was continuing discussions with the medical community about the policy.

"We certainly want to see appropriate price signals in the system, but we want to do it in a way which protects the vulnerable," he said.

"The lesson of last year is that if we are going to go forward with these things and I believe we must, we have to do it working with the medical profession rather than against them."

Treasurer Joe Hockey has delivered an impassioned plea to Coalition MPs to focus on the job and not on the leader.

"Stop engaging in commentary on colleagues, stop engage in commentary on the leadership, focus on fixing the country," he said.

"Because, by God that is the job we have been elected to do."

Some Liberals suggested removing Mr Abbott's controversial chief of staff Peta Credlin could help appease disgruntled backbenchers and alleviate pressure on his leadership.

Mr Abbott this morning initially rebuffed a question about her tenure as "navel gazing" but then confirmed she remains on his staff.