addressing factitious lowering of blood K ... after Vfib and fluid administration.
and questionable dx of bulimia and collapse due to that.
not to be considered a comprehensive screen, but no evidence of diet drugs
large intake of tea -- may also have played a role -- caffeine has somewhat been implicated ... but considering (other factors) ca toxicity is not likely.
did she have a 'heart attack' / MI? ...
heart is anatomically normal
no evidence of long qt syndrome (as shown via genetic testing)