When is DIABETES TESTING ordered?

Blood glucose testing can be used to screen healthy, asymptomatic individuals for diabetes and pre-diabetes because diabetes is a common disease that begins with few symptoms. Screening for glucose may occur during public health fairs or as part of workplace health programs. It may also be ordered when a patient has a routine physical exam. Screening is especially important for people at high risk of developing diabetes, such as those with a family history of diabetes, those who are overweight, and those who are more than 40 to 45 years old.

The glucose test may also be ordered to help diagnose diabetes when someone has symptoms of hyperglycemia, such as:

    * Increased thirst
    * Increased urination
    * Fatigue
    * Blurred vision
    * Slow-healing infections

or symptoms of hypoglycemia, such as:

    * Sweating
    * Hunger
    * Trembling
    * Anxiety
    * Confusion
    * Blurred Vision

Blood glucose testing is also done in emergency settings to determine if low or high glucose is contributing to symptoms such as fainting and unconsciousness. If a patient has pre-diabetes (characterized by fasting or OGTT levels that are higher than normal but lower than those defined as diabetic), the doctor will order a glucose test at regular intervals to monitor the patient’s status. With known diabetics, doctors will order glucose levels in conjunction with other tests such as hemoglobin A1c to monitor glucose control over a period of time.

Occasionally, a blood glucose level may be ordered along with insulin and C-peptide to monitor insulin production.

Diabetics may be required to self-check their glucose, once or several times a day, to monitor glucose levels and to determine treatment options as prescribed by their doctor.

Pregnant women are usually screened for gestational diabetes late in their pregnancies, unless they have early symptoms or previously have had gestational diabetes. When a woman has gestational diabetes, her doctor will usually order glucose levels throughout the rest of her pregnancy and after delivery to monitor her condition.

SOURCE: www.labtestsonline.com