OverviewWhat is hypoglycemia?Hypoglycemia is when the level of sugar in the blood drops below a healthy range. It’s also called low blood sugar or low blood glucose. Show
Everyone has different levels of blood sugar at different times. But for most people, low blood sugar is defined as below 70 mg/dL (milligrams per deciliter). Severe hypoglycemia usually happens at lower levels and is generally defined as a low blood sugar event that requires the assistance of someone else in order to correct the low blood sugar. Severe hypoglycemia is dangerous and needs treatment right away. What causes hypoglycemia?Hypoglycemia comes from too much insulin in the body. Insulin is a hormone that controls certain functions in your body. It helps your body use glucose for energy. What’s the link between diabetes and hypoglycemia?Hypoglycemia is most common, by far, in people with diabetes. Treatment for the diseaseoften involves taking medication to increase insulin. Hypoglycemia can develop if things like food, exercise and diabetes medications are out of balance. Common pitfalls for people with diabetes include:
Also, if someone with diabetes uses the wrong insulin, takes too much or injects it incorrectly, that can cause hypoglycemia. Can someone have hypoglycemia without diabetes?Very rarely, someone has hypoglycemia without diabetes. Scientists are still trying to understand the cause. What are the symptoms of hypoglycemia?Symptoms of hypoglycemia can start quickly, with people experiencing them in different ways. The signs of hypoglycemia are unpleasant. But they provide good warnings that you should take action before blood sugar drops more. The signs include:
You may also experience symptoms while sleeping:
When a hypoglycemic episode gets worse, the brain doesn’t get enough sugar, so you may experience:
During a severe hypoglycemic event, a person may:
Does everyone have symptoms from hypoglycemia?Some people don’t have symptoms or don’t notice them. Healthcare providers call that situation hypoglycemia unawareness. People with such a challenge aren’t aware when they need to do something about their blood sugar. They’re then more likely to have severe episodes and need medical help. People with hypoglycemia unawareness should check their blood sugar more often. Diagnosis and TestsHow is hypoglycemia diagnosed?The only way to know if you have hypoglycemia is to check your blood sugar with a blood glucose meter. It’s a small machine that measures blood sugar. Most of these devices use a tiny prick of the finger to take a small amount of blood. People with hypoglycemia unawareness may need a continuous glucose monitor. These wearable devices measure glucose every few minutes, day and night. An alarm sounds if blood sugar drops too low. Management and TreatmentHow do I treat an episode of hypoglycemia?The American Diabetes Association recommends the “15-15 rule” for an episode of hypoglycemia:
If you have symptoms of hypoglycemia but can’t test your blood sugar, use the 15-15 rule until you feel better. Note: Children need fewer grams of carbs. Check with your healthcare provider. How do I measure carbs?To know how many carbs you’re having, read food labels. Some examples of about 15 grams:
What if the 15-15 rule doesn’t work?If you don’t feel better after three tries, or if your symptoms get worse, call your healthcare provider or 911. Healthcare providers can use a medication called glucagon. They inject it with a needle or squirt it up your nose. Glucagon is also available for home use. Your healthcare provider can prescribe it and teach a family member or friend how to use it in the event of severe hypoglycemia. PreventionHow can I prevent hypoglycemic episodes?The key to preventing hypoglycemic events is managing diabetes:
Outlook / PrognosisWhat is the outlook for people with hypoglycemia?Hypoglycemia can be managed when you and your healthcare provider understand what causes your blood sugar to go down. Give your healthcare provider as much information as possible about any hypoglycemic episodes. Fixing the problem may be as simple as changing the times you take medication, eat and exercise. Minor changes to the types of food you eat may also help. Living WithHow can I be better prepared for hypoglycemia?You can take some steps to be ready for hypoglycemia:
A note from Cleveland Clinic Hypoglycemia is quite common in people with diabetes. If not treated, it can cause troubling symptoms, and even serious health problems. Fortunately, you can avoid hypoglycemic episodes by monitoring your blood sugar. You can also make small adjustments to eating and exercising routines. What happens if a diabetic blood sugar is too low?This can lead to blurred vision, difficulty concentrating, confused thinking, slurred speech, numbness, and drowsiness. If blood glucose stays low for too long, starving the brain of glucose, it may lead to seizures, coma, and very rarely death.
How can I raise my blood sugar quickly?Your doctor may tell you to have really sugary foods or drinks (like regular soda, orange juice, or cake frosting) or might give you glucose tablets or gel to take — all of these can help to raise your blood sugar level fast, which is what you need to do when it's low. Wait about 10 minutes to let the sugar work.
What is the danger level for low blood sugar?Low blood sugar is called hypoglycemia. A blood sugar level below 70 mg/dL (3.9 mmol/L) is low and can harm you. A blood sugar level below 54 mg/dL (3.0 mmol/L) is a cause for immediate action.
How do you care for a person experiencing a diabetic emergency with low blood sugar?Give them something sweet to eat or a non-diet drink.
If someone has a diabetic emergency, their blood sugar levels can become too low. This can make them collapse. Giving them something sugary will help raise their blood sugar levels and improve their bodily function.
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