I think we've figured out what happened with Barb.

Just a hypothoses, but it makes sense to me. Barb gets asymptomatic UTI's once in a while, that is a UTI with no symptoms. She has been hospitolized for this before, because left untreated UTI's can comprimise the kidneys. Wich is what I believe happend with her. Her white blood cells were high indicating infection. So her ketones were building up in her blood because her kidneys couldn't process them. The levels indicated large amounts of muscle breakdown or Rhabdomyelesis on par with huge amounts of alcohol or severe diabetes or heavy heavy excersize. What the docs didn't take into consideration is that they had built up continiously for several days.

999 out of a 1000 people feel better, loose weight, and get mere energy from low-carb diets she just happened to be the 1 that didn't. Poor girl.