Once the symptoms of extreme thirst, frequent urination, skin problems not healing properly, feeling nausea when hungry and itchy skin, constant fungal problems, would point to a diagnoses of diabetes. The doctor would either order a
glucose test or a blood test to check HBA1C levels. The HBA1C blood test shows the average blood sugar over a period of 3 months. If the sugar level in the body is high, this would be detected in a urine specimen test using the urine test strips.