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By Mayo Clinic staffYou'll be diagnosed with diabetic hyperosmolar syndrome if your blood sugar level is 600 mg/dL (33 mmol/L) or higher.
To evaluate how well your kidneys are working, the doctor may measure the amount of nitrogen or creatinine (a breakdown product of creatine, an important part of muscle) in your blood. Another blood test known as a hematocrit may be done to measure the proportion of red blood cells and fluid in your blood. The doctor may measure the amount of potassium in your blood as well.