Can hyperglycemia cause a diabetic coma?

Yes. If the hyperglycemia is high enough it can lead to diabetic coma. We call this hyperosmolar hyperglycemia coma or syndrome. Diabetes ketoacidosis coma is another form of diabetic coma but this one is caused by not having Insulin rather than the extreme hyperglycemia (which is just a sign for this coma).

Related Questions

My wife has been in a diabetic coma for 4 days from hyperglycemia what are her chances for brain injury?

Diabetic coma. To me, a diabetic coma indicates a very high blood sugar level. If that is the case the blood sugar level must be gradually reduced. That said, I am quite concerned that improved control of blood sugar is OK but the possibility of brain injury must be carefully evaluated. Hope all goes well - please keep me posted. Read more...

Can one metformin tablets at night and 30 units of humlin insulin in the morning good for one, or can it cause diabetic coma?

Not likley. It depends on your sugars honestly. If you are not what we call a brittle diabetic then you will be just fine. Monitor your sugars closely. Read more...
Depends. Diabetic coma usually is due to prolonged markedly elevated blood sugar. Coma can also occur with too low a blood sugar often from too much insulin. Therefore if the patient takes too little or too much insulin, coma can ensue. Metformin alone will not drop the blood sugar too low however. Without knowing more facts the above dosage of medication can be right, too much or too little. Read more...