You never recover from hyperglycemic shock.

[Sundance]

Intentional? I think there's some weird coding with this, I've seen this happen alot before where once you go into hypergylcemic shock, the rate at which sugar leaves the body is dropped. This me purely guessing, but it's been around for a while. Try with a monkey I guess?
Essentially if this happens you are completely fucked unless someone gives you insulin.