Another type of coma is called the hyperosmolar coma. Hyperosmolar coma is the loss of consciousness that happens when the body has lost unusual amounts of fluid due to excessive amounts of glucose in the blood. If the diabetic person misses their insulin shot, or consume foods high in sugar without exercising, or do not use medications properly to control their blood glucose, their blood glucose levels could go dangerously high. The kidneys try to regulate blood glucose levels by pulling glucose, sodium, and other molecules out of the circulating stream. These different molecules are released from the body, along with large amounts of water by urination.
Rapid dehydration is the next stage in diabetic hyperosmolarity .
The diabetic person can not adequately rehydrate himself or herself compared to the increasing rate of dehydration. The brain shuts down and creates a life-threatening situation. The last major type of diabetes related coma is the hypoglycemic coma. Hypoglycemic coma is the loss of consciousness that occurs when blood glucose levels fall significantly below normal. This condition is most frequent in people that need to closely monitor their glucose and insulin intake.