A 27-year-old mother died 16 days after toxic levels of blood pressure tablets gave her a heart attack starving her brain of oxygen, an inquest has heard.

Hayley McDermott was discovered at home in Cross River Street, Keighley, on April 19, 2012, by her partner Gareth Blackburn, who could not get in and had to call police and paramedics.

Miss McDermott showed no signs of life but after ten minutes paramedics managed to get a pulse and kept up resuscitation on the journey to Airedale General Hospital.

Doctors diagnosed her with a severe brain injury because of a lack of oxygen and broke the news to her family she was not expected to survive.

The inquest in Bradford yesterday heard how the day before her collapse police were called to her house over social welfare issues.

There had been concerns, because she was covered in bruises, that she had been the victim of domestic abuse but she had resisted attempts to get her to a safe refuge.

But a police investigation during which two other men who were known to Miss McDermott were questioned, found no evidence of criminality leading to Miss McDermott’s death and pathologist Dr Charles Wilson said: “She died with the bruises not of them.”

Neither was a suicide note found in the house or any indication Miss McDermott might have intended to take her own life. When social workers left her the night before she had been calm and collected, they said.

But Mr Blackburn told the inquest how his partner had been post-natally depressed and how her life had taken a downward turn after she had a miscarriage and a stillbirth – she had started not looking after her health, was drinking at odd times and was “sloppy” taking her blood pressure tablets.

Toxicology tests from blood samples taken while she was still alive revealed a toxic level of amlodopine – the high blood pressure drug she had been prescribed.

Her father, David McDermott, Mr Blackburn and other family members had raised concerns during the inquest that she had been let down by the police, social services, and also Airedale Hospital for its post-natal depression care.

But Assistant Deputy Coroner Dr Dominic Bell, who recorded a narrative verdict, found no shortfalls in the protocols and procedures that were followed and said he was heartened by their acceptance that there were always opportunities to learn from.

Speaking after the inquest Mr McDermott paid tribute to his daughter saying: “I think about her every day, we all do. She was so full of life, an equestrian, a flautist who taught those with special needs.

“She could run like the wind, swim like a fish. She loved her son to bits and was desperate to have a little girl.”