Radio DJs pretend to be queen, make prank call to Catherine's hospital The radio station apologizes, saying the call was "done with the best intentions" The hospital says it "deeply regrets" the prank call getting through to the ward A nurse at King Edward VII Hospital gives DJs details of Catherine's condition The DJs, from Sydney's 2Day FM station, succeeded in getting through to Kate's private nurse at King Edward VII Hospital and had a brief conversation that included some details of her condition, according to audio of the call posted online. The radio show posted an apology for the call on its official Twitter feed Wednesday. 2Day FM sincerely apologises for any inconvenience cause (d) by the enquiry to Kate's hospital. The radio segment was done with the best intentions and we wish Kate and her family all the best. An earlier tweet by 2Day FM described it as a "hilarious prank." Catherine, the Duchess of Cambridge, is still receiving treatment after she was admitted to the hospital Monday with hyperemesis gravidarum, a condition which involves nausea and vomiting more severe than the typical morning sickness many women suffer during early pregnancy Audio of the call posted online reveals that the nurse, sounding nervous, divulged general details of Kate's condition and care. She also tells DJs Mel Greig and Michael Christian, who host the Summer 30 show on 2Day FM, what time William left the previous evening and suggests they visit after 9 a.m. that day. The conversation was conducted in poorly done English accents and with frequent references to "Charles" walking the queen's corgis, her much-loved dogs, but it did not appear to raise alarm bells with hospital staff. The DJs commented on how easy it was to make the prank call. The queen was previously the object of a prank call in 1995, when Canadian DJ Pierre Brassard got through to Buckingham Palace pretending to be then-Canadian Prime Minister Jean Chretien. According to UK media reports at the time, they spoke for about quarter of an hour and discussed an upcoming referendum on independence for Quebec. The palace said Monday that Catherine, 30, is likely to remain in the hospital for several days. The duchess is not yet 12 weeks pregnant, Clarence House told CNN, so the palace is not announcing a due date for the child. William and Catherine's child will be next in line to the British throne after William, regardless of whether it is a boy or a girl. Planned changes to the law of succession that end the tradition of a boy jumping over an elder sister are already de facto in effect, the British Cabinet Office said. Deputy Prime Minister Nick Clegg said Tuesday that all 16 countries that recognize the British monarch as their head of state have formally agreed to the change and British lawmakers will change the rules as soon as possible. Clegg also said that the change in succession will allow someone in line to the throne to marry a Catholic -- but not to be a Catholic. The Church of England is the nation's official church. It split from the Roman Catholic Church in the 16th century. CNN's Max Foster, David Wilkinson, Damien Ward and Claudia Rebaza contributed to this report.