Tests and diagnosis

By Mayo Clinic Staff

If you experience diabetic hyperosmolar syndrome, prompt diagnosis is critical. The emergency medical team will do a physical exam and may ask those who are with you about your medical history.

Lab tests

You may need various lab tests to measure:

  • Your current blood sugar level
  • Glycated hemoglobin (A1C) — a blood test that indicates your average blood sugar level for the past two to three months
  • Whether or not ketones are present in your urine — ketones are byproducts made when fat is used as fuel instead of glucose
  • Your kidney function, by testing the amount of blood urea nitrogen or creatinine in your blood
  • The amount of potassium, phosphate and sodium in your blood

You'll be diagnosed with diabetic hyperosmolar syndrome if your blood sugar level is 600 mg/dL (33.3 mmol/L) or higher.

Jun. 20, 2012