Prayers sent.
I didn't know what ketoacidosis was until I googled it.
Diabetic ketoacidosis is a problem that occurs in people with diabetes. It occurs when the body cannot use sugar (glucose) as a fuel source because there is no insulin or not enough insulin. Fat is used for fuel instead.
Byproducts of fat breakdown, called ketones, build up in the body.
My Brother in law has type 1 Diabetes and He has his bad days. Best wishes for a speedy recovery for your father.