Unless your husband is using icodextran solution, his body should be producing normal serum glucose levels by making insulin to "cover" the extra sugar in his PD solution. (Icodextran can falsely raise glucose levels in the blood). If this isn't happening, he may now be diabetic. Type 2 diabetes occurs when the pancreas is "burned out" from overuse. Two things happen:
-- The worn out pancreas makes less insulin
-- Cells in the body become less sensitive to the insulin that is present
Diabetes is usually detected in this country with a fasting glucose test done first thing in the morning. If your husband hasn't had this test done, he should.
Type 2 diabetes is often treated with pills, diet changes, and exercise (very important, as exercise helps sensitiize the body's cells to the insulin that is present). In time, many type 2 diabetics progress to the point where they need insulin.