How Common Is Low Blood Glucose
Low blood glucose is common among people with type 1 diabetes and among people with type 2 diabetes who take insulin or some other diabetes medicines. In a large global study of people with diabetes who take insulin, 4 in 5 people with type 1 diabetes and nearly half of those with type 2 diabetes reported a low blood sugar event at least once over a 4-week period.2
Severely low blood glucose, defined as when your blood glucose level drops so low you cant treat it yourself, is less common. Among U.S. adults with diabetes who take insulin or some diabetes medicines that help the pancreas release insulin into the blood, 2 in 100 may develop severely low blood glucose each year.3
Signs That Blood Sugar Levels Are Low
There are a bunch of symptoms that someone with low blood sugar might have. It’s not the same for everybody. The symptoms are as minor as feeling hungry and as serious as having seizures or passing out. Have you ever had low blood sugar? If so, do you remember how it felt? Noticing those problems early can help you if it happens again.
If you have diabetes and you have low blood sugar, you may:
- feel hungry or have “hunger pains” in your stomach
- feel shaky or like you’re trembling
- have a rapid heart rate
- feel sweaty or have cold, clammy skin
- have pale, gray skin color
- have a headache
- be unsteady or stagger when walking
- have blurred or double vision
- feel confused
- have seizures
- pass out
If you think your blood sugar level could be low, tell a parent, teacher, or whoever is taking care of you. An adult can help you test your blood and get you treatment so you start feeling better.
No Symptoms Be Alarmed
Surprisingly, the most dangerous episodes of hypoglycemia occur with little or no warning. When low blood glucose occurs on a regular basis, the body can become used to the warning signs and the person may stop noticing symptoms. This is a particularly dangerous condition known as hypoglycemic unawareness. People with this condition might not realize they have low blood glucose until it’s dangerously low seizures and coma are sometimes the first indication of a problem. The good news is that this condition can often be reversed allowing people to once again notice the signs of low blood glucose if hypoglycemia is avoided for a few weeks through careful monitoring of blood glucose.
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How To Treat Someone Who’s Having A Seizure Or Fit
Follow these steps if someone has a seizure or fit caused by a low blood sugar level:
Tell your diabetes care team if you ever have a severe hypo that caused you to have a seizure or fit.
Dont Drive When You Have Low Blood Sugar
It’s dangerous. If you’re driving and you have hypoglycemia symptoms, pull off the road, check your blood sugar, and eat a sugary food. Wait at least 15 minutes, check your blood sugar, and repeat these steps if needed. Eat a protein and carbohydrate source before you drive on. Be prepared. Keep a sugar source, such as glucose tablets, in your car at all times for emergencies.
Allina Health: âNon-diabetic Hypoglycemia.”
Endotext: “Non-Diabetic Hypoglycemia.”
UW Health: âNutrition Management of Low Blood Sugar without Diabetes .â
Memorial Sloan Kettering Cancer Center: âHow to Give an Emergency Glucagon Injection to Treat Low Blood Sugar.â
American Diabetes Association: âHypoglycemia .â
Joslin Diabetes Center: âDriving with Diabetes,â âHow To Treat A Low Blood Glucose,â âIs Low Blood Glucose Dangerous?â âOral Diabetes Medications Summary Chart,â âPrandin âOral Hypoglycemic Agent.â”
Journal of the American Medical Association: âFactitious Hypoglycemia Due to Chlorpropamide: Report of a Case, with Clinical Similarity to an Islet Cell Tumor of the Pancreas.â
AMN Healthcare: âAdvances in Diabetes, Part II: Oral Medications.â
Physiciansâ Desk Reference: âAllopurinol,â âCoumadin,â âProbenecid.â
National Institute of Diabetes and Digestive and Kidney Diseases: âLow Blood Glucose .â
Hormone Health Network: âNon Diabetic Hypoglycemia.â
University of Iowa Hospitals & Clinics: âHypoglycemia .â
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Low Blood Glucose During Sleep
Your blood glucose level can drop while you sleep and stay low for several hours, causing serious problems.7 Symptoms of low blood glucose while you sleep can include
- crying out or having nightmares
- sweating enough to make your pajamas or sheets damp
- feeling tired, irritable, or confused after waking up
Although you may not wake up or notice any symptoms, low blood glucose can interfere with your sleep, which may affect your quality of life, mood, and ability to work. Having low blood glucose during sleep can also make you less likely to notice and respond to symptoms of low blood glucose during the day.
Severe Low Blood Sugar
As your low blood sugar gets worse, you may experience more serious symptoms, including:
- Feeling weak.
- Having difficulty walking or seeing clearly.
- Acting strange or feeling confused.
- Having seizures.
Severe low blood sugar is below 54 mg/dL. Blood sugar this low may make you faint . Often, youll need someone to help you treat severe low blood sugar.
People with diabetes may experience low blood sugar as often as once or twice a week, even when managing their blood sugar closely. Knowing how to identify and treat it is important for your health. Learn how to treat low blood sugar.
Causes Of Low Blood Sugar
There are many reasons why you may have low blood sugar, including:
- Taking too much insulin.
- Not eating enough carbs for how much insulin you take.
- Timing of when you take your insulin.
- The amount and timing of physical activity.
- Drinking alcohol.
- How much fat, protein, and fiber are in your meal.
- Hot and humid weather.
- Unexpected changes in your schedule.
- Spending time at a high altitude.
- Going through puberty.
Examples Of Appropriate Snacks May Be:
- 6 saltine crackers
- 1 slice toast and 1/2 cup milk
- 1 cup milk
The food eaten for a reaction need not be subtracted from a meal plan.
Obtain a blood sugar when symptoms occur if you are able. If symptoms are severe, treat the reaction first and then obtain a blood sugar. Do not drive nor operate equipment if you feel your blood sugar is low.
If your blood sugar drops low enough for you to become unconscious, you must be taken to the hospital and/or treated with glucagon.
Glucagon is a hormone that causes the blood sugar to rise. It can only be given by injection. It is used to treat a low blood sugar if a person becomes semi-conscious or unconscious due to a severe low blood sugar. Please ask your nurse for instruction on glucagon. Your doctor will need to write a prescription for glucagon so you can have it available at home.
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When To Call The Doctor
If signs of low blood sugar do not improve after you have eaten a snack that contains sugar, have someone drive you to the emergency room or call your local emergency number . DO NOT drive when your blood sugar is low.
Get medical help right away for a person with low blood sugar if the person is not alert or cannot be woken up.
Where Can I Find Support
The Hypoglycemia Support Foundation, established nearly 40 years ago, is a national group that offers many resources, including advocacy. They offer salons so that you can personally connect with people like you who are also dealing with bouts of low blood sugar.
Occasionally blood sugar crashes are so extreme they require emergency room care for an immediate dextrose IV treatment. If you have diabetes, wear a medical bracelet that does TK thing? What will this bracelet have on it? A number of one of your contacts? Can you answer and smooth out with this line? have a circle of people who serve as close contacts and are aware of your condition and how to help.
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How Do You Treat Low Blood Sugar
The American Diabetes Association suggests treating low blood sugar using what they call the 15-15 Rule. This treatment involves consuming 15 grams of carbohydrates to raise glucose levels and checking your levels again after 15 minutes. Some foods that contain 15 grams of carbohydrates include:
- Three glucose tablets
- 4-6 ounces of fruit juice
- 2 tablespoons of raisins
- 6 jelly beans
- 5-6 ounces of regular soda
Its suggested to repeat these steps until your levels reach 70 mg/dL. Once your levels have returned to normal, its important to have a small snack to keep them that way!
If A Person Is Unconscious
If a person loses consciousness because of severe hypoglycaemia, they need to be put into the recovery position and given an injection of the hormone glucagon . The injection will raise their blood glucose level.
The injection should be carried out by a friend or family member who knows what they’re doing, or by a trained healthcare professional.
You should dial 999 to request an ambulance if:
- a glucagon injection kit isn’t available
- there’s nobody available who’s trained to give the injection
- the injection is ineffective after 10 minutes
Never try to put food or drink into the mouth of someone who’s unconscious as they could choke.
If you’re able to give a glucagon injection and the person regains consciousness, they should eat some longer-acting carbohydrate food, such as a few biscuits, a cereal bar or a sandwich.
You should continue to monitor the person for signs of recurring symptoms in case they need to be treated again.
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Signs Of Hypoglycemic Unawareness
Some people have no symptoms of low blood sugar. The only symptom you may have is confusion. Or you may become unconscious before anyone realizes you have low blood sugar.
You may have hypoglycemic unawareness if you:
- Cannot tell by your symptoms that your blood sugar is low.
- Have low blood sugar several times a week.
- Have type 1 diabetes, or have had type 2 diabetes for a long time.
If you have hypoglycemic unawareness, test your blood sugar often, especially before activities like driving a car. Keep some glucose or sucrose tablets or solution or quick-sugar foods with you. If you take insulin, carry a glucagon emergency kit. You can also give friends and family instructions to treat low blood sugar.
Talk To Your Doctor Or Nurse
If you use insulin and your blood sugar is frequently or consistently low, ask your doctor or nurse if you:
- Are injecting your insulin the right way
- Need a different type of needle
- Should change how much insulin you take
- Should change the kind of insulin you take
DO NOT make any changes without talking to your doctor or nurse first.
Sometimes hypoglycemia can be due to taking the wrong medicines. Check your medicines with your pharmacist.
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Treating Low Blood Sugar
You are at risk of having a low blood sugar reaction if you:
- Skip or delay a meal or snack
- Take too much insulin or eat too few carbohydrates
- Drink alcohol, especially without eating carbohydrates
Check your blood sugar if you have any of these symptoms:
- Weakness and/or fatigue
If your blood sugar is less than 70 milligrams per deciliter :
- Eat 15 to 30 grams of carbohydrate
- Wait 15 minutes and then recheck your blood sugar
- If your blood sugar is still less than 100 mg/dl, take another 15 grams of carbohydrate and retest your blood sugar in another 15 minutes. Repeat if necessary.
Important: If you have frequent low blood sugars speak to your doctor. You may need changes in your medication and/or meal plan.
When Blood Sugar Is Too Low
Glucose is a sugar that comes from the foods we eat, and it’s also formed and stored inside the body. It’s the main source of energy for the cells of our body, and is carried to each cell through the bloodstream. Our brains depend on glucose to function, even when we’re sleeping.
The is the amount of glucose in the blood. When these levels drop too low, it’s called hypoglycemia . Very low blood sugar levels can cause serious symptoms that need to be treated right away.
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The Causes Of Low Blood Sugar
Low blood sugar levels can happen to kids with diabetes because of the medicines they have to take. Kids with diabetes may need a hormone called insulin and/or diabetes pills to help their bodies use the sugar in their blood. These medicines help take the sugar out of the blood and get it into the body’s cells, which makes the level of sugar in the blood go down.
But sometimes it’s a tricky balancing act, and blood sugar levels can get too low. Kids with diabetes need to keep their blood sugar levels from getting too high or too low. How do they do it? With help from grown-ups, they keep three things in balance:
Each one of these can affect the other. For instance, eating more might mean a kid needs more insulin. And exercising might create the need for an extra snack. Again, a grown-up can help you learn how to juggle those three activities so you keep feeling good.
Some things that can make low blood sugar levels more likely to happen are:
- skipping meals and snacks
- not eating enough food at a meal or snack
- exercising longer or harder than usual without eating something extra
- getting too much insulin
- not timing the insulin doses properly with meals, snacks, and exercise
- taking a long bath or shower right after an insulin shot
Normal Range Of Fasting Blood Sugar Found Among Men : 74
Ideal values of Fasting blood sugar depending on age :
|Age||Ideal Fasting blood sugar value|
|< 5 years|
|> 100 years||91.676|
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What Are Clinical Trials For Low Blood Glucose
Clinical trialsand other types of clinical studiesare part of medical research and involve people like you. When you volunteer to take part in a clinical study, you help doctors and researchers learn more about disease and improve health care for people in the future.
Researchers are studying many aspects of low blood glucose levels in diabetes, such as
- how to diagnose and treat low blood glucose among people with diabetes
- medicines that can treat symptoms of low blood glucose in people with hypoglycemia unawareness
- educational approaches to reduce fear of low blood glucose, which can make it harder for you to control your diabetes
What Should I Do If I Have Symptoms Of A Low Blood Sugar Level
- Check your blood sugar level, if possible. Your blood sugar level is too low if it is at or below 70 mg/dL.
- Eat or drink 15 grams of fast-acting carbohydrate. Fast-acting carbohydrates will raise your blood sugar level quickly. Examples of 15 grams of fast-acting carbohydrates:
- 4 ounces of fruit juice
- 4 ounces of regular soda
- 2 tablespoons of raisins
- 1 tube of glucose gel or 3 to 4 glucose tablets
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What Is Low Blood Glucose
Low blood glucose, also called low blood sugar or hypoglycemia, occurs when the level of glucose in your blood drops below what is healthy for you. For many people with diabetes, this means a blood glucose reading lower than 70 milligrams per deciliter .1 Your number might be different, so check with your doctor or health care team to find out what blood glucose level is low for you.
Your Diabetes Devices And Hypoglycemia
Several insulin pumps are now available that make managing blood sugar levels easier, particularly when connected to a glucose meter or a CGM.
Some of the most important advantages of CGM devices are the improved insulin control and the ability to detect trends and lows early. With improved technology, it is now possible for parents to track blood sugar trends in their kids even when they are hundreds of miles apart .
In addition, automated insulin delivery systems, also known an artificial pancreas or a hybrid closed-loop system, will automatically adjust insulin to match your bodys need to help you spend more time in your target range.
Resources that provide people with T1D and their families with more detailed information about pumps and CGM devices are available through JDRF here. For people looking for a deeper understanding of technology that helps people with T1D better manage their blood sugar, JDRF resources are available here.