Just two years before she murdered her first victim, Lucy Letby had given a potentially fatal dose of morphine to a newborn baby, an inquiry has heard.
The child received 10 times the correct amount of the painkiller at the end of a night shift in July 2013 and could have died if it wasn't for colleagues at handover who spotted the error.
An inquiry into the events surrounding Letby's crimes at the Countess of Chester Hospital was told that Letby and another nurse had set up the morphine infusion for the infant.
The Thirlwall Inquiry heard how Letby’s colleague was so “distraught” about the incident that she almost resigned. Letby however, was described as being “unhappy” when informed by neonatal unit ward deputy ward manager Yvonne Griffiths that she could not administer controlled drugs until a review had taken place. READ MORE: Judge shows mercy to greedy thief who stole 'up to £10k' in donations at Manchester Children's Hospital A week later, Letby was apparently told that she could continue to work with drugs such as morphine by neonatal unit ward manager Eirian Powell, the inquiry heard.
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