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Diabetes

Information Kit - Diagnosis and Complications

Diabetes is diagnosed by means of a blood test measuring blood sugar and is administered by a physician or health care provider. Blood glucose levels vary with food intake, so the timing of this test in relation to meals is important. To help ensure that blood glucose readings are as accurate as possible, the test is classified in the following manner:

  • a casual plasma glucose: means the measurement is taken without regard to the time of the last meal;
  • a fasting plasma glucose (FPG): means the blood sugar measurement is taken when the person has not eaten for at least 8 hours;
  • the oral glucose tolerance test (OGTT): means that the person fasts for at least 8 hours, is then given a 75 g glucose load, and the blood sugars are measured at 1 and/or 2 hour intervals after the load.

Long-term Complications of Diabetes

Diabetes is a major cause of other diseases or chronic conditions. These include:

  • cardiovascular (heart) disease and stroke,
  • high blood pressure
  • lower-limb amputations
  • retinopathy (blindness)
  • kidney disease
  • nervous system disorders
  • pregnancy complications
  • other (influenza, pneumonia, etc.)

www.diabetes.gc.ca

© Her Majesty the Queen in Right of Canada, (2002)

ISBN 0-662-66548-1
Cat. No. H39-620/2002-6

Last Updated: 2003-12-29
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