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Type 2 diabetes - Symptom

Alternative Names

Noninsulin-dependent diabetes; Diabetes - type 2; Adult-onset diabetes

Symptoms:

Often, people with type 2 diabetes have no symptoms at all. If you do have symptoms, they may include:

Signs and tests:

Type 2 diabetes is diagnosed with the following blood tests:

  • Fasting blood glucose level -- diabetes is diagnosed if higher than 126 mg/dL on 2 occasions.
  • Oral glucose tolerance test -- diabetes is diagnosed if glucose level is higher than 200 mg/dL after 2 hours.
  • Random (non-fasting) blood glucose level -- diabetes is suspected if higher than 200 mg/dL and accompanied by the classic symptoms of increased thirst, urination, and fatigue (this test must be confirmed with a fasting blood glucose test).

Have your hemoglobin A1c (HbA1c) level checked every 3 - 6 months. The HbA1c is a measure of average blood glucose during the past 2 -3 months. It is a very helpful way to determine how well treatment is working.

  • Reviewed last on: 12/12/2008
  • A.D.A.M. Editorial Team: David Zieve, MD, MHA, Greg Juhn, MTPW, David R. Eltz. Previously reviewed by Elizabeth H. Holt, MD, PhD, Assistant Professor of Medicine, Section of Endocrinology and Metabolism, Yale University. Review provided by VeriMed Healthcare Network (6/17/2008).

References

American Diabetes Association. Standards of medical care in diabetes -- 2008. Diabetes Care. 2008/31:S12-S54.

American Diabetes Association (ADA). Standards of medical care in diabetes IV. Prevention/delay of type 2 diabetes. Diabetes Care. 2007;30:S7-S8.

In the clinic. Type 2 diabetes. Ann Intern Med. 2007;146:ITC-1-15.

Psaty BM, Furberg CD. Rosiglitazone and Cardiovascular Risk. N Engl J Med. 2007 May 21; [Epub ahead of print].

The information provided herein should not be used during any medical emergency or for the diagnosis or treatment of any medical condition. A licensed medical professional should be consulted for diagnosis and treatment of any and all medical conditions. Call 911 for all medical emergencies. Links to other sites are provided for information only -- they do not constitute endorsements of those other sites. © 1997- A.D.A.M., Inc. Any duplication or distribution of the information contained herein is strictly prohibited.
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