Amie Miller, 15, was taken to Basildon Hospital A&E in November 2008 after suffering headaches while studying for her GCSEs.
A jury returned a narrative verdict, saying that the medics had seriously failed to meet Amie's needs by failing to carry out basic checks, administering inappropriate treatment and failing to properly communicate with one another.
Speaking afterwards, Amie's family told how she was a promising student who had dreamed of becoming a paediatrician.
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Mainly dry on Sunday in the Anglia region with some good sunny spells. One or two light showers are possible near coasts.
The Broads Authority wants to rebrand the area as a National Park
Saturday will be largely cloudy with a continued risk of heavy showers or thunderstorms. Sunday will be dry with sunny spells.