The management of the London hospital targeted by a prank call from two Australian DJs has written a letter of complaint to their radio station, condemning the stunt as "truly appalling".
Lord Simon Glenarthur, the hospital's chairman, wrote to the chairman of Southern Cross Austereo to protest "in the strongest possible terms" about Tuesday's prank call.
The call was answered by nurse Jacintha Saldanha, 46, who was found dead in her apartment on Friday (local time) after an apparent suicide following the hoax.
2Day FM radio hosts Mel Greig and Michael Christian called the hospital pretending to be the Queen and Prince Charles in an attempt to speak to the pregnant Duchess of Cambridge.
Ms Saldanha answered the call before transferring it through to the duty nurse responsible for Catherine, who divulged details of the royal's acute morning sickness.
Lord Glenarthur said the prank resulted in the "humiliation of two dedicated and caring nurses who were simply doing their job tending to their patients."
"King Edward VII's Hospital cares for sick people, and it was extremely foolish of your presenters even to consider trying to lie their way through to one of our patients, let alone actually make the call," the letter said.
"Then to discover that, not only had this happened, but that the call had been pre-recorded and the decision to transmit approved by your station's management, was truly appalling."
Wave of anger
Ms Saldanha's death has sparked global outrage directed towards the radio station and the presenters.
Tributes to Jacintha Saldanha were placed outside the nurses' accommodation block where her body was discovered on Friday, triggering a wave of anger directed at the two Australian radio hosts behind the prank.
Scotland Yard police headquarters said a post-mortem would take place next week.
All the national papers carried the story on their front page and several published angry internet outbursts directed at the radio presenters, who were pulled off the air Saturday.
A wooden cross with a British flag was left outside the hospital on Saturday, while flowers were placed outside the nearby nurses' block.
Attached to the red, white and blue flowers, a note read: "Dear Jacintha, our thoughts are with you and your family. From all your fellow nurses, we bless your soul. God bless."
Nurse Saldanha reportedly came from India and had two children.
"We as a family are deeply saddened by the loss of our beloved Jacintha," her family said in a statement.
In a message posted on his Facebook page, her husband Benedict Barboza reportedly wrote: "I am devastated with the tragic loss of my beloved wife Jacintha in tragic circumstances, She will be laid to rest in Shirva, India."
The royals did not complain about the incident but it sparked intense media coverage and the hospital's chief executive John Lofthouse said staff had been trying to help Ms Saldanha "through this very difficult time".
William and Catherine have said they were "deeply saddened" by Ms Saldanha's death and Prime Minister Julia Gillard said it was a "terrible tragedy".
Fleet street response
In its editorial, Britain's biggest-selling newspaper The Sun said the death was "heartbreaking and bewildering", and a "needless tragedy", asking how a foolish prank could end in an apparent suicide.
"No doubt she was distraught at unwittingly embarrassing the royals and her employers," it said.
"We can only guess at the inner torment of Jacintha, who after years of loyal professionalism, suddenly found herself in trouble for something that was not her fault."
The Independent's editor Chris Blackhurst wrote that the normal chatter and laughter of the newsroom ebbed away as news of Ms Saldanha's death broke.
We can only guess at the inner torment of Jacintha, who after years of loyal professionalism suddenly found herself in trouble for something that was not her fault
"It was an awful moment, one in which the at-times detached cynicism of some sections of the media - so central to Lord Justice Leveson's inquiry - was laid bare," he said, referring to the recent report into British press ethics.
"In fact, even some of our more hard-bitten reporters were desperately saddened.
"Has anyone from The Independent ever posed as someone else to obtain information to pursue a story? Yes, we have. But we would maintain we were acting in the public interest - not to provide mere comic entertainment.
"People play jokes all the time, in all walks of life. Sometimes they backfire. Now and again, the consequences are out of all proportion to the original jape. Likewise, accidents occur every day because of an unforeseen danger.
"I can't excuse [the presenters]. But a little perspective is required."
Southern Cross Austereo chief executive Rhys Holleran fronted a press conference in Sydney on Saturday and expressed "deep sorrow" at the nurse's death.
Mr Holleran said he was confident the stunt had not broken any laws, but the station later moved to suspend all advertising until at least Monday.
He said the two presenters had been pull off the air and would "not return until further notice".
Mr Holleran said the pair had been left "shattered" by the nurse's death and had been offered counselling.
"This is a tragic event that could not have been reasonably foreseen and we're deeply saddened by it," he said.
"I spoke to both presenters early this morning and it's fair to say they're completely shattered.
"These people aren't machines, they're human beings. We're all affected by this."
The Australian Communications and Media Authority confirmed it had received complaints about the hoax, which chairman Chris Chapman said will be investigated.