Seems the hospital he's now in thinks it is nerve gas or some kind of neurotoxic venom. What would be funny is if the storyline played out like this:

1. Goes into diabetic shock, goes to hospital.
2. Gets poisoned at hospital (lol)
3. Moved to new hospital which sees something that looks like he's been given cholinesterase inhibitor.

Makes me wonder whether those in a diabetic coma also would suffer from low cholinesterase...