Medical Description

Hypoglycemia, also known as low blood sugar, occurs when blood sugar levels drop too low to provide enough energy for the body’s activities. In patients 10 years and older, it is uncommon except as a side effect of diabetes treatment.


Symptoms

  • hunger
  • nervousness and shakiness
  • perspiration
  • dizziness or light-headedness
  • sleepiness
  • confusion
  • difficulty speaking
  • feeling anxious or weak
  • crying out at night or having nightmares
  • perspiration
  • feeling tired, irritable, or confused

General Information

Patients taking diabetes or blood-sugar lowering medicines can have their blood sugar levels fall because:

  • meals or snacks that are too small, delayed, or skipped
  • excessive doses of insulin or some diabetes medications
  • increased activity or exercise
  • excessive drinking of alcohol

Source: “Hypoglycemia,” National Diabetes Information Clearinghouse, March 2003.


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