I went through this ten years before I retired. Denied a first class medical because of a trace of sugar in my urine. After a review of the paperwerk by the feds, I had to get an A1C test. That is the only way to accurately test blood sugar. It measures the average blood sugar over the past three months. The feds do not recognize the finger prick meter test as a valid test because it is entirely dependent on one's individual body metabolism and the amount of blood sugar at the time the test is taken. The A1C is not. It is the only test acceptable to the feds. Within one month of the denial I had a first class medical, and was never denied a medical from then on.
Noah Werks