Ask The Expert
Coping

I can understand your concern. This is a common and frustrating problem for many people with diabetes—and their spouses.
A blood glucose of 500 (mg/dL) is considered extremely high and generally a reason to contact a doctor. A detailed explanation is provided in the related question at right entitled: "When to call the doctor."
First: It is so important that you start by discussing your concerns with your husband to see if he's willing to let you attend a session with his doctor and ideally also with his diabetes educator. Many diabetes education centers offer classes as well as support groups for people with diabetes and their families. In addition, many people benefit from psychological counseling to help them cope with the everyday challenges of managing diabetes.
If your husband refuses to include you on visits to the diabetes team, you may consider contacting his doctor to discuss this—but realize that his doctor will be limited in what he or she can do if your husband does not provide consent.
There are many resources available online to help you understand some of these issues. Please start by reading the links I have provided.
I know this can be overwhelming, but learning about diabetes will help provide you with a deeper understanding of what your husband may be experiencing. I do hope your husband will open up a little to let you help him. Best wishes for sorting this out.
Resource Links