Hypoglycemia
Some symptoms of hypoglycemia (low blood glucose) may include:
- Dizzy or shaky
- Fast heartbeat
- Sweating or clammy
- Nervous or irritable
- Hunger
- Blurry vision
- Weak or tired
- Headache
Some of the causes of low blood glucose are:
- Too little food
- Too much insulin
- Too many diabetes pills
- Extra activity
If your blood glucose gets too low, ask
Did I skip a meal or snack?
Was I more physically active than usual?
Did I take too much insulin or too many diabetes pills?
What can you do?
Check your blood glucose right away if you have any symptoms of low blood glucose. If you cannot check right away, eat or drink a fast-acting carbohydrate snack. Examples of these include:
1/2 cup (4 ounces) of fruit juice- 1/2 can of a regular soda pop (not diet)
- 3 to 4 glucose tablets
- 3 to 5 hard candies you can eat quickly, such as mints
Wait 15 minutes and then check your blood glucose again. If your glucose level is still low, eat or drink another fast-acting snack. If symptoms don't stop, call your healthcare provider.
Some people may not feel any signs or symptoms of low blood glucose before they have a problem. This is another reason why frequent blood glucose checking is important.
Expert advice on hypoglycemia
- Expert Advice from Anne Daly, RD, MS, CDE; Registered Dietitian, Certified Diabetes Educator
(Under 1 min.)
Anne Daly describes managing hypoglycemia
Play Video - Expert Advice from Hope Warshaw, RD, MMSc, CDE; Registered Dietitian, Certified Diabetes Educator (Under 1 min.)
Hope Warshaw describes the importance of wearing a medical ID bracelet
Play Video
Untreated low blood glucose is dangerous and can cause you to become unconscious
It's a good idea to wear a medical ID or carry a card which explains that you have diabetes and what help you might need in an emergency. Many people who take insulin keep a
glucagon emergency kit handy for loved ones or coworkers to use in a blood glucose emergency. An injection of glucagon will raise your blood glucose quickly if you become unconscious or unable to swallow any food. Be sure that those around you know how to use the kit.
Several organizations sell identification items (bracelets, necklaces, or key rings) inscribed with your medical condition and other important information. You can ask you pharmacist for help getting these items.
