A popular Leyland teenager suffered a heart attack and brain damage after a pre-diagnosed condition caused her throat and tongue to swell, an inquest heard.
Doctors initially thought Maria Mosqueda, 19, of Hillbrook Road, had suffered anaphylactic shock in hospital after having an adverse reaction to penicillin.
But tests proved negative and the inquest, held at Preston Coroner’s Court on Thursday, heard how she developed acquired angioedema which causes a swollen throat and tongue, meaning Maria struggled to breathe.
It was triggered by lupus, a condition where the immune system starts to attack healthy cells, tissue and organs which Maria had suffered with for around two years.
Prof Timothy Dawson, who carried out the post mortem examination, said: “The swelling of the airways led to cardiorespiratory arrest.
“She suffered brain damage from which she was unable to recover.”
Former Wellfield High School student Maria had gone to the accident and emergency department at Chorley hospital on January 2, suffering severe nose bleeds, caused by her condition.
While in hospital she had several blood transfusions and was being monitored for kidney problems and a low platelet count.
At around 10pm on January 28, Maria complained of pain in her head and neck and was prescribed antibiotics for suspected tonsillitis or a throat infection.
Just after 11.50pm, she began to have difficulty breathing.
Doctors battled to save her by inserting a tube into her windpipe to administer oxygen.
But just after 12.15am, she went into cardiac arrest and her heart stopped beating for 14 minutes.
Maria’s heart was revived and she was later transferred to the intensive care unit at Royal Preston Hospital but scans in the following days showed part of her brain had died.
Treatment was stopped and the Preston College student died on February 12.
Deputy coroner Simon Jones recorded a verdict of natural causes.