A medical student died after telling her flatmates not to call an ambulance, despite complaining of feeling unwell and experiencing difficulty breathing, in a case which has doctors mystified.
Sarah Houston, 23, was found dead in her bedroom by housemates on 24 September, but her cause of death is still unknown.
The undergraduate was encouraged to call an ambulance but said it wasn't unusual for her to feel that way, and the symptoms would pass, the Yorkshire Evening Post reported.
The court heard one of Sarah's housemates had left her phone on loud in case Sarah needed help during the night. The housemate checked on her friend the next morning but did not see her in her room.
Sarah, from Chesham Bois in Buckinghamshire, was found that evening by another housemate and was pronounced dead by paramedics, who were called to the scene.
Coroner David Hinchliff said the court did not have any medical history on the student.
"No cause of death is available at this stage and additional tests will need to be made to assist in finding the cause of death," he added.
A cremation order has been made and an interim death certificate was issued to allow a funeral to take place.
A university spokesman: “We were sorry to learn of the death of one of our students last week.
“Our thoughts are with her family and friends.
“Staff in her school are working to ensure her friends and fellow students are supported at this difficult time.”