Severe Hypoglycemia: An Emergency Guide for Low Blood Sugar Events Hypoglycemia, often referred to as low blood sugar, occurs when the level of glucos...
Severe Hypoglycemia: An Emergency Guide for Low Blood Sugar Events
Hypoglycemia, often referred to as low blood sugar, occurs when the level of glucose (sugar) in your blood drops below normal. While mild to moderate hypoglycemia can often be managed with quick dietary adjustments, severe hypoglycemia is a critical medical emergency that requires immediate intervention. This guide provides a comprehensive overview of severe hypoglycemia, including how to recognize it, what causes it, and—most importantly—how to respond effectively. Understanding this condition and having a plan can be life-saving, especially for individuals with diabetes and their caregivers.
Why Severe Hypoglycemia Matters
Severe hypoglycemia poses significant risks, including:
- Seizures: Extremely low blood sugar can disrupt brain function, leading to seizures.
- Loss of Consciousness: The brain requires a constant supply of glucose to function. Without it, consciousness can be lost.
- Cognitive Impairment: Prolonged episodes can, in rare cases, contribute to cognitive deficits.
- Increased Risk of Accidents: Confusion and impaired judgment can lead to dangerous situations, especially while driving or operating machinery.
- Death: In the most dire cases, severe hypoglycemia can be fatal if left untreated.
Recognizing the signs and acting swiftly is paramount in mitigating these risks. This guide will equip you with the knowledge to handle such emergencies with confidence and effectiveness.
Recognizing the Signs and Symptoms of Severe Hypoglycemia
While early symptoms of hypoglycemia are often mild and can be managed by the individual experiencing them, severe hypoglycemia manifests with more pronounced and alarming signs. It's essential to distinguish between mild and severe symptoms to take appropriate action.
Early Symptoms (Mild to Moderate Hypoglycemia)
- Shakiness or tremors
- Sweating
- Anxiety or nervousness
- Irritability or confusion
- Rapid heartbeat
- Lightheadedness or dizziness
- Hunger
- Tingling or numbness of the lips, tongue, or cheeks
These symptoms are usually a warning sign that blood sugar levels are dropping and can often be resolved by consuming a quick source of carbohydrates, like juice, glucose tablets, or hard candies.
Symptoms of Severe Hypoglycemia
Severe hypoglycemia is characterized by symptoms that impair cognitive function and physical ability, making the individual unable to treat themselves. These symptoms may include:
- Confusion and Disorientation: Difficulty thinking clearly, answering questions, or following instructions.
- Loss of Coordination: Stumbling, difficulty walking, or clumsy movements.
- Slurred Speech: Speaking incoherently or having trouble articulating words.
- Seizures: Uncontrolled jerking movements and loss of awareness.
- Unconsciousness: Inability to respond to stimuli, like shaking or loud noises.
- Combativeness or Irritability: Acting aggressively or irrationally.
- Blurred Vision or Double Vision: Temporary visual disturbances.

It is crucial to note that not everyone experiences the same symptoms or experiences them in the same order. The severity of symptoms can also vary based on the individual's overall health, age, and the underlying cause of the hypoglycemia.
| Symptom | Description | Severity | | --------------------------- | ------------------------------------------------------------------------------------------------------------------------------ | ------------- | | Confusion | Difficulty thinking, answering questions, or following instructions. | Severe | | Loss of Coordination | Stumbling, difficulty walking, or clumsy movements. | Severe | | Slurred Speech | Speaking incoherently or having trouble articulating words. | Severe | | Seizures | Uncontrolled jerking movements and loss of awareness. | Severe | | Unconsciousness | Inability to respond to stimuli. | Severe | | Combativeness | Acting aggressively or irrationally. | Severe | | Blurred or Double Vision | Temporary visual disturbances. | Severe | | Shakiness/Tremors | Uncontrollable shaking. | Mild to Severe| | Sweating | Profuse sweating without physical exertion. | Mild to Severe|
If you observe any of these symptoms in someone you know, especially someone with diabetes, treat it as a potential case of severe hypoglycemia and take immediate action.
Identifying the Causes of Severe Hypoglycemia
Understanding the potential causes of severe hypoglycemia can help in prevention and informed decision-making during an emergency. While it’s most common in people with diabetes, it can occur in non-diabetics as well, although it’s less frequent.
Common Causes in Individuals with Diabetes
- Excessive Insulin Dosage: Taking too much insulin can lower blood glucose levels drastically. This is one of the most common causes of hypoglycemia in insulin-dependent diabetics.
- Missed or Delayed Meals: Insulin needs to be balanced with carbohydrate intake. Skipping meals or significantly delaying them can cause a mismatch, leading to hypoglycemia.
- Increased Physical Activity: Exercise increases insulin sensitivity and glucose utilization. Without adjusting insulin doses or increasing carbohydrate intake, blood sugar can drop too low.
- Alcohol Consumption: Alcohol can interfere with the liver's ability to release glucose into the bloodstream, especially when consumed without food.
- Kidney Disease: Impaired kidney function can affect insulin clearance, potentially leading to hypoglycemia.
- Certain Medications: Besides insulin, some oral diabetes medications (like sulfonylureas) can also cause hypoglycemia. Interactions with other medications can also play a role.
Causes of Hypoglycemia in Non-Diabetics
- Reactive Hypoglycemia (Postprandial Hypoglycemia): Occurs a few hours after eating, often due to an overproduction of insulin in response to a high-carbohydrate meal.
- Fasting Hypoglycemia: Can be caused by various underlying medical conditions:
- Insulinoma: A rare tumor in the pancreas that produces excess insulin.
- Adrenal or Pituitary Gland Disorders: These glands regulate hormone production that affects blood sugar.
- Severe Liver Disease: The liver plays a crucial role in glucose storage and production.
- Kidney Failure: Can impact glucose metabolism.
- Certain Medications: Some non-diabetes medications can, in rare cases, cause hypoglycemia.
- Excessive Alcohol Consumption: Similar to people with diabetes, alcohol can impair glucose regulation.
- Starvation: Prolonged periods without food intake can deplete glucose stores.
- Sepsis: Severe infections can disrupt glucose metabolism.
- Bariatric Surgery: Rapid gastric emptying can affect glucose absorption and hormone responses.
| Cause | Description | Common in | | ------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------ | --------- | | Excessive Insulin Dosage | Taking too much insulin. | Diabetics | | Missed Meals | Skipping or delaying meals after taking insulin. | Diabetics | | Increased Physical Activity | Exercise without adjusting insulin/food intake. | Diabetics | | Alcohol Consumption | Interference with liver's glucose release, especially without food. | Both | | Reactive Hypoglycemia | Overproduction of insulin after meals. | Non-Diabetics | | Insulinoma | A rare tumor producing excess insulin. | Non-Diabetics | | Adrenal/Pituitary Disorders | Hormonal imbalances affecting glucose regulation. | Non-Diabetics | | Liver/Kidney Failure | Impaired glucose metabolism due to organ dysfunction. | Non-Diabetics |
Understanding these potential causes helps in identifying risk factors and implementing preventative strategies, especially for individuals prone to hypoglycemia.
Emergency Treatment of Severe Hypoglycemia
When someone exhibits symptoms of severe hypoglycemia, rapid action is critical. The goal is to raise their blood glucose level as quickly as possible to prevent further complications. The approach depends on whether the person is conscious or unconscious.
Treatment for a Conscious Person
If the person is awake, responsive, and able to swallow:
- Administer a Quick Source of Glucose:
- Glucose Tablets or Gel: Give 15-20 grams of glucose tablets or a tube of glucose gel, following the product's instructions.
- Sugary Drink: If glucose tablets or gel aren’t available, provide 4-6 ounces of regular (non-diet) juice or soda.
- Hard Candies: 5-6 hard candies that can be chewed quickly.
- Check Blood Sugar After 15 Minutes: Use a glucose meter, if available, to check the person's blood sugar level 15 minutes after giving the glucose source.
- Repeat Treatment if Necessary: If blood sugar remains low (typically below 70 mg/dL) or symptoms persist, repeat the treatment with another 15-20 grams of glucose.
- Follow Up with a Complex Carbohydrate and Protein: Once the blood sugar level starts to rise, give the person a snack containing a complex carbohydrate and protein (e.g., crackers with peanut butter, cheese and crackers, or a piece of fruit with nuts). This helps to stabilize blood sugar levels and prevent a recurrence.
- Seek Medical Assistance: Even if the person recovers quickly, it’s advisable to seek medical evaluation as severe hypoglycemia can indicate an underlying issue that needs addressing.
Important Considerations:
- Avoid giving foods high in fat (like chocolate) as they can slow down glucose absorption.
- Do not leave the person unattended until they are fully recovered and their blood sugar level is stable.
- If symptoms do not improve significantly after two rounds of treatment, call for emergency medical help.
Treatment for an Unconscious Person
If the person is unconscious, having a seizure, or unable to swallow:
Under no circumstances should you attempt to give food or liquids orally, as this could cause choking.
- Administer Glucagon: Glucagon is a hormone that stimulates the liver to release stored glucose into the bloodstream.
- If Available and You Know How to Use It: Injectable glucagon kits are prescribed for individuals at risk of severe hypoglycemia. Follow the instructions provided with the kit. Inject glucagon into the thigh, arm, or buttock.
- Nasal Glucagon: A newer formulation of glucagon is administered nasally (into the nose), which can be easier to use than the injectable form. Follow the instructions provided.
- Call Emergency Services Immediately (911 or Your Local Emergency Number): Even if you administer glucagon, it's crucial to call for emergency medical assistance. Glucagon takes 10-15 minutes to work, and the person needs immediate medical evaluation.
- Position the Person Safely: If the person is having a seizure, protect them from injury by clearing the area of sharp or hard objects. Turn them on their side (recovery position) to prevent choking on saliva or vomit.
- Provide Information to Emergency Responders: Tell the paramedics or EMTs about the person's medical history, any medications they are taking, and the fact that they have received glucagon.
Related reading: The Role Of Blood Sugar And Insulin How Your Body Manages Glucose
| Action | Conscious Person | Unconscious Person | | ------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Give Glucose Source | 15-20g glucose tablets/gel, 4-6 oz juice/soda, or 5-6 hard candies. | DO NOT give anything by mouth (risk of choking). | | Check Blood Sugar | After 15 minutes, using a glucose meter. | N/A – Priority is summoning emergency help. | | Repeat Treatment (if needed) | If blood sugar remains low or symptoms persist, repeat treatment once. | N/A - Await emergency services. | | Follow-up Snack | Once blood sugar rises, provide a snack with complex carbs and protein. | N/A - Once conscious and able to eat, provide carbs/protein. | | Administer Glucagon | Not necessary if responsive and improving with glucose source. | Injectable or nasal glucagon (if available and trained to use), then IMMEDIATELY call emergency services (911 or your local emergency number) | | Position Safely (Seizures) | Protect from injury. | Protect from injury; turn on side (recovery position). | | Seek Medical Assistance/Call EMS | Advised even if the person recovers quickly. Call EMS if symptoms worsen or do not improve after two treatments. | Essential. Call emergency services immediately. |
Note on Glucagon: It’s essential that family members, caregivers, and close contacts of individuals at risk of severe hypoglycemia are trained on how to administer glucagon. Regularly check the expiration date on glucagon kits and replace them as needed. It is always preferable to administer glucagon by injection into a muscle, such as the thigh or buttock. Nasal Glucagon is also an option in cases where giving an injection proves too difficult.
Related reading: Newly Diagnosed With Type 2 Diabetes Understanding Your Blood Sugar Range
Prevention Strategies for Hypoglycemia
Prevention is key to minimizing the risk of severe hypoglycemia, particularly for individuals with diabetes. Implementing proactive measures can significantly reduce the frequency and severity of low blood sugar events.
Strategies for People with Diabetes
- Regular Blood Sugar Monitoring: Regularly check blood sugar levels, especially before meals, before bedtime, and before and after exercise. This helps to identify patterns and potential triggers for hypoglycemia.
- Consistent Meal Schedules: Eat meals and snacks at consistent times each day to match insulin timing and prevent blood sugar from dropping too low.
- Carbohydrate Counting: Learn how to accurately count carbohydrates in meals and snacks to ensure that insulin doses are appropriately matched to food intake.
- Adjust Insulin Doses as Needed: Work closely with your healthcare provider to adjust insulin doses based on activity levels, diet, and overall health.
- Carry Fast-Acting Glucose: Always have a readily available source of fast-acting glucose (glucose tablets, gel, juice) on hand to treat hypoglycemia promptly.
- Wear a Medical Alert: Wear a medical ID bracelet or necklace that identifies you as having diabetes. This can alert first responders in case of an emergency.
- Educate Family and Friends: Teach family members, friends, and coworkers how to recognize the signs of hypoglycemia and how to administer glucagon if necessary.
- Review Medications Regularly: Work with your doctor or pharmacist to review all medications (including over-the-counter drugs and supplements) to identify any potential interactions that could affect blood sugar.
- Consider a CGM (Continuous Glucose Monitor): CGM devices track glucose levels in real-time and alert users when their blood sugar is trending too high or too low, giving them the chance to take corrective action before a severe episode occurs. Some models can automatically suspend insulin delivery from a pump when glucose is predicted to drop too low.
General Strategies for Non-Diabetics
- Avoid Skipping Meals: Especially if prone to reactive hypoglycemia, eat regular, balanced meals.
- Limit Alcohol Consumption: Consume alcohol in moderation and always with food.
- Address Underlying Medical Conditions: If experiencing recurrent hypoglycemia, seek medical evaluation to identify and treat any underlying medical conditions that may be contributing to the problem.
- Dietary Changes: Adopt a diet that promotes stable blood sugar levels:
- Emphasize complex carbohydrates over simple sugars.
- Include sources of protein and healthy fats at each meal.
- Eat smaller, more frequent meals if needed.
| Prevention Strategy | Target Group | Description | | ---------------------------------- | ----------------------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Regular Blood Sugar Monitoring | People with Diabetes | Monitoring blood glucose at regular intervals (before meals, bedtime, exercise, etc.) helps track patterns and potential triggers, allowing timely interventions. | | Consistent Meal Schedules | People with Diabetes | Eating meals and snacks at consistent times helps match insulin doses to food intake, preventing blood glucose swings. | | Carbohydrate Counting | People with Diabetes | Precisely counting carbohydrates in meals ensures appropriate insulin dosing. | | Adjust Insulin Doses | People with Diabetes | Work with healthcare providers to adjust insulin doses based on activity levels, diet, and health to prevent both hypoglycemia and hyperglycemia. | | Carry Fast-Acting Glucose | People with Diabetes | Always have fast-acting glucose on hand for immediate treatment of low blood sugar. | | Wear Medical Alert ID | People with Diabetes | Medical ID bracelets or necklaces alert first responders about your diabetes in emergencies. | | Educate Family/Friends | People with Diabetes | Informing others about hypoglycemia symptoms and how to administer glucagon can save lives in emergencies. | | Avoid Skipping Meals | Non-Diabetics | Regular meals help avoid reactive hypoglycemia. | | Limit Alcohol Intake | Non-Diabetics | Consume alcohol in moderation and with food. | | Balanced Diet (Complex Carbs) | Both | Balanced nutrition that helps to maintain a constant blood sugar. | | Consider CGM | Some Diabetics | Monitor glucose levels in real time. Alarms go off and notify when blood sugar is low so you can be prepared. |
By adopting these preventative strategies, individuals can significantly reduce their risk of experiencing severe hypoglycemia and improve their overall quality of life.
Living with the Risk of Hypoglycemia: Support and Resources
Living with the risk of severe hypoglycemia can be challenging, both for individuals with diabetes and their loved ones. Access to reliable support, education, and resources is essential for managing the condition effectively and reducing anxiety.
Support Groups and Communities
- Diabetes Support Groups: Joining a local or online diabetes support group provides an opportunity to connect with others who understand the challenges of managing blood sugar levels. Sharing experiences, tips, and emotional support can be invaluable.
- Online Forums and Communities: Numerous online forums and communities dedicated to diabetes management offer a platform for asking questions, seeking advice, and sharing stories.
- Patient Advocacy Organizations: Organizations like the American Diabetes Association (ADA) and JDRF (formerly the Juvenile Diabetes Research Foundation) provide educational resources, advocacy, and support programs for individuals with diabetes and their families.
Educational Resources
- Diabetes Education Programs: Participating in a diabetes self-management education program (DSME) can empower individuals with the knowledge and skills needed to manage their condition effectively. These programs typically cover topics such as blood sugar monitoring, insulin administration, meal planning, and exercise.
- Healthcare Providers: Work closely with your healthcare team, including your doctor, diabetes educator, and registered dietitian, to develop an individualized management plan that meets your specific needs.
- Reliable Websites and Publications: Consult reputable websites and publications (such as those from the ADA, the National Institutes of Health (NIH), and diabetes-focused magazines) for up-to-date information on hypoglycemia and diabetes management.
Psychological Support
- Therapy and Counseling: Living with a chronic condition like diabetes can be emotionally taxing. Consider seeking therapy or counseling to address any anxiety, stress, or depression related to hypoglycemia.
- Mindfulness and Relaxation Techniques: Practicing mindfulness, meditation, and relaxation techniques can help reduce stress and improve overall well-being.
- Cognitive Behavioral Therapy (CBT): A proven psychological technique that helps individuals manage blood sugar. CBT helps manage and address fear that is related to low blood sugar, thus reducing future episodes and issues related to low blood sugar.
| Resource Type | Description | Benefits | | ------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- | | Support Groups | Local or online groups where individuals with diabetes and their families can share experiences, tips, and emotional support. | Reduces feelings of isolation, provides practical advice, offers emotional support. | | Online Forums | Online platforms for asking questions, seeking advice, and sharing stories related to diabetes management. | Accessibility, anonymity, wide range of topics discussed. | | Advocacy Organizations | Organizations like ADA and JDRF that provide resources, advocacy, and support. | Up-to-date information, access to programs and services, advocacy for diabetes-related policies. | | Diabetes Education Programs | Structured programs covering blood sugar monitoring, insulin administration, meal planning, and exercise. | Improved self-management skills, better glycemic control, reduced risk of complications. | | Healthcare Team | Doctors, diabetes educators, and dietitians who provide individualized management plans. | Personalized care, tailored recommendations, medical expertise. | | Reliable Websites/Publications | Reputable sources of information on diabetes and hypoglycemia management. | Evidence-based information, up-to-date guidelines, easy access. | | Therapy/Counseling | Addressing emotional challenges related to diabetes and hypoglycemia. | Reduces anxiety, stress, and depression; improves coping skills. | | Mindfulness/Relaxation | Techniques to reduce stress and improve well-being. | Improved mood, reduced stress, enhanced self-awareness. |
Related reading: Simple Ways To Gain Better Control Of Blood Glucose Levels
Remember, you are not alone. There are many resources available to help you manage the risk of severe hypoglycemia and live a full and healthy life. Building a strong support network and accessing reliable information can make a significant difference in your ability to navigate the challenges of diabetes management.