A woman's sudden death as she was being moved from her hospital bed to a wheelchair was due to natural causes, an inquest heard.

Joan Blackwell, 63, of Iffley House, Iffley Turn, Oxford, who had a history of epilepsy, cognitive loss and suspected multiple sclerosis, died at the Radcliffe Infirmary on July 4 last year.

Staff nurse Jacqueline Groli- mund said she was informed when she came on duty that her patient had slept well during the night.

Mrs Grolimund washed and dressed Ms Blackwell and then used a hoist to move her from her bed to a wheelchair.

But within minutes she noticed that Ms Blackwell looked clammy and her lips were blue.

Ms Blackwell was pronounced dead by a doctor on the ward.

Her daughter, Clare Prout, said her mother was almost totally dependent on others and had very little mobility.

Prof Margaret Esiri, a neuropathologist at the hospital, said the most likely cause of Ms Blackwell's death was a blood clot on the lungs.

Prof Esiri said a previous fracture and Ms Blackwell's inability to move about on her own could have contributed to her death.

Coroner Nicholas Gardiner recorded a verdict that she died of natural causes.