What Happens During a Severe Hypoglycemia Event and How to Respond
Hypoglycemia, or low blood sugar, is a common complication for people with diabetes who take insulin or certain oral medications. While mild hypoglycemia can often be managed with a quick snack, severe hypoglycemia can be a frightening experience requiring immediate intervention. Understanding what happens during such an event and how to respond effectively is crucial for both the individual experiencing it and those around them. This article dives deep into the symptoms, risks, and, most importantly, the steps to take when someone experiences severe hypoglycemia. The 5 Common Factors Affecting Your Blood Sugar Levels Daily
What is Severe Hypoglycemia?
First, it's essential to define what we mean by severe hypoglycemia. While a specific blood sugar level that triggers it can vary from person to person, severe hypoglycemia is generally defined as a state where the individual's blood sugar is so low that they require assistance from another person to recover. This assistance might involve administering glucose or glucagon because the individual is unable to treat themselves. They may be unconscious, having a seizure, or otherwise cognitively impaired.
The Physiological Cascade: What Happens in the Body?
When blood sugar drops too low, the body initiates several physiological responses:
- Hormone Release: The body initially releases hormones like epinephrine (adrenaline) and glucagon. Epinephrine causes symptoms like sweating, shakiness, anxiety, and a rapid heartbeat. Glucagon attempts to stimulate the liver to release stored glucose into the bloodstream.
- Neuroglycopenia: If the blood sugar remains low, the brain becomes deprived of glucose (neuroglycopenia). This can lead to neurological symptoms such as confusion, difficulty concentrating, slurred speech, vision changes, seizures, and ultimately, loss of consciousness.
- Cellular Dysfunction: Prolonged severe hypoglycemia can lead to cellular damage in the brain and other organs due to energy deprivation. In extreme cases, it can result in permanent neurological damage or even death.
Recognizing the Symptoms: Early Warnings and Progression
Being able to recognize the signs of hypoglycemia, and in particular the warning signs that it is escalating, is critical. The symptoms of severe hypoglycemia can vary, but often follow a progression:
- Early Symptoms (Mild to Moderate Hypoglycemia): These may include sweating, trembling, rapid heartbeat, hunger, tingling lips, anxiety, and irritability. These are usually easily self-treated.
- Late Symptoms (Progressing to Severe Hypoglycemia): As blood sugar drops further, symptoms can progress to confusion, difficulty concentrating, weakness, dizziness, blurred vision, slurred speech, incoordination, irrational behavior (e.g., combativeness), seizures, and loss of consciousness. It's these later symptoms that characterize a severe hypoglycemic event.
It’s important to note that some individuals may experience hypoglycemia unawareness, where they no longer experience the early warning signs. This significantly increases the risk of severe events. Regular blood sugar monitoring and working with a healthcare provider to adjust treatment plans are crucial in such cases.
Immediate Response: What to Do When Someone is Experiencing Severe Hypoglycemia
The immediate response to a severe hypoglycemic event is crucial and time-sensitive. Here’s a step-by-step guide:

- Assess the Situation: Is the person conscious and able to swallow? Are they displaying symptoms indicative of severe hypoglycemia (confusion, seizures, unconsciousness)?
- If the Person is Conscious and Able to Swallow:
- Administer Glucose: Provide a fast-acting source of glucose, such as glucose tablets, a sugary drink (regular soda, not diet), fruit juice, or honey. Approximately 15-20 grams of carbohydrate is usually recommended.
- Retest Blood Sugar: After 15 minutes, retest their blood sugar. If it's still low (below 70 mg/dL or as advised by their doctor), administer another dose of glucose.
- Provide a Longer-Acting Carbohydrate: Once their blood sugar is rising, give them a snack containing both carbohydrates and protein, such as crackers with peanut butter or cheese, to help stabilize their blood sugar levels.
- Monitor Closely: Continue to monitor the person closely until their blood sugar is within a safe range and they are feeling better.
- If the Person is Unconscious or Unable to Swallow:
- Do NOT Attempt to Give Food or Drink: This could cause choking.
- Administer Glucagon: If available, administer glucagon by injection or nasal spray according to the product instructions. Glucagon is a hormone that stimulates the liver to release stored glucose into the bloodstream. It is critical that family members, friends, and caregivers know how to administer glucagon.
- Call Emergency Services (911): Even after administering glucagon, it's essential to call for emergency medical assistance. The person may require further treatment.
- Position the Person on Their Side: If the person is unconscious, place them in the recovery position (on their side) to prevent choking should they vomit.
- Stay with the Person: Remain with the person until emergency medical services arrive.
Prevention: Strategies to Minimize the Risk of Severe Hypoglycemia
Prevention is always better than cure. Several strategies can help minimize the risk of severe hypoglycemic events:
- Regular Blood Sugar Monitoring: Frequent blood sugar monitoring, especially before meals, after exercise, and before bedtime, can help identify patterns and prevent lows. Continuous Glucose Monitoring (CGM) systems can be particularly helpful.
- Medication Management: Work closely with a healthcare provider to ensure that diabetes medications (insulin, sulfonylureas) are appropriately dosed and timed. Regular medication reviews are important.
- Meal Planning: Consistent meal timing and carbohydrate intake can help stabilize blood sugar levels. Consult with a registered dietitian or certified diabetes educator for personalized meal planning guidance.
- Exercise Management: Be aware of how exercise affects blood sugar. Monitor blood sugar levels before, during, and after exercise. Adjust insulin doses or carbohydrate intake as needed.
- Educate Family and Friends: Educate family members, friends, and caregivers about the signs and symptoms of hypoglycemia and how to respond in an emergency, including how to administer glucagon.
- Carry Identification: Wear medical identification (e.g., a medical alert bracelet or necklace) indicating that you have diabetes and take insulin or other medications that can cause hypoglycemia.
- Keep a Hypoglycemia Rescue Kit: Always carry a hypoglycemia rescue kit containing a fast-acting source of glucose (glucose tablets, juice box), glucagon (if prescribed), and instructions on how to use them.
- Avoid Excessive Alcohol Consumption: Alcohol can impair the liver's ability to release glucose, increasing the risk of hypoglycemia. Consume alcohol in moderation and always with food.
- Address Hypoglycemia Unawareness: If you experience hypoglycemia unawareness, discuss this with your healthcare provider. They may recommend strategies such as raising your target blood sugar levels or using a CGM system with alarms.
The Role of Glucagon: A Life-Saving Medication
Glucagon is a crucial medication for treating severe hypoglycemia when a person is unable to take glucose orally. It comes in injectable and nasal spray forms. It works by stimulating the liver to release stored glucose into the bloodstream, rapidly raising blood sugar levels.
- How to Administer Glucagon: It's imperative that family members, friends, and caregivers are trained on how to administer glucagon. Follow the specific instructions provided with the product. In general:
- Injectable Glucagon: Prepare the injection by mixing the powder and liquid according to the instructions. Inject the solution into the thigh, arm, or abdomen.
- Nasal Glucagon: Administer the nasal spray into one nostril.
- Important Considerations:
- Glucagon may not work if the person has depleted their liver glucose stores (e.g., due to prolonged starvation or excessive alcohol consumption).
- After glucagon administration, the person should be monitored closely, and they should be given a source of carbohydrates as soon as they are able to swallow to replenish their glucose stores.
- Even after glucagon is administered, emergency medical services should still be called to ensure the person receives appropriate follow-up care.
When to Seek Professional Medical Advice
While knowing how to respond to a severe hypoglycemic event is critical, it's equally important to know when to seek professional medical help. Always call emergency services (911) in the following situations:
- The person is unconscious or has seizures.
- Glucagon is not available or you are not comfortable administering it.
- The person does not respond to glucagon within 15 minutes.
- The person has recurrent episodes of severe hypoglycemia.
- You are unsure about the cause of the hypoglycemia.
Furthermore, schedule an appointment with a healthcare provider if you or someone you know experiences frequent episodes of hypoglycemia, hypoglycemia unawareness, or has difficulty managing their blood sugar levels. They can help identify the underlying causes of the hypoglycemia and adjust the treatment plan accordingly.
Long-Term Management: Working with Your Healthcare Team
Effective long-term management of diabetes and the prevention of hypoglycemia require a collaborative approach with your healthcare team, which may include: How Blood Sugar And Weight Loss Are Connected And How To Manage Both
- Endocrinologist: A specialist in hormone disorders, including diabetes.
- Primary Care Physician: Your general doctor who can help coordinate your care.
- Certified Diabetes Educator (CDE): A healthcare professional who provides education and support to people with diabetes on topics such as blood sugar monitoring, medication management, meal planning, and exercise.
- Registered Dietitian: A nutrition expert who can help you develop a personalized meal plan to manage your blood sugar levels.
Working together, this team can help you create a comprehensive plan to manage your diabetes effectively, minimize the risk of hypoglycemia, and improve your overall health and well-being.
Understanding the Impact on Quality of Life
Frequent or severe hypoglycemia can significantly impact a person's quality of life. It can lead to:
- Fear and Anxiety: Individuals may experience fear of future hypoglycemic episodes, which can lead to anxiety and avoidance behaviors.
- Reduced Confidence: They may lose confidence in their ability to manage their diabetes.
- Cognitive Impairment: Recurrent severe hypoglycemia can potentially lead to long-term cognitive impairment.
- Social Isolation: They may avoid social situations or activities due to the fear of having a hypoglycemic event in public.
Addressing the psychological impact of hypoglycemia is crucial. Encourage individuals to seek support from family, friends, diabetes support groups, or mental health professionals. Cognitive behavioral therapy (CBT) can be helpful in managing anxiety and fear related to hypoglycemia. When Is Your Blood Sugar Level Considered Dangerously High
Summary
Severe hypoglycemia is a serious complication of diabetes that requires prompt recognition and treatment. Understanding the physiological processes involved, recognizing the signs and symptoms, knowing how to administer glucose and glucagon, and implementing preventative strategies are essential for managing this potentially life-threatening condition. By working closely with your healthcare team, educating family and friends, and taking proactive steps to manage your diabetes, you can minimize the risk of severe hypoglycemia and improve your overall quality of life.
Below is a table summarizing key differences in symptoms and treatments for mild vs severe hypoglycemia, and some additional data about glucagon.
Characteristic | Mild Hypoglycemia | Severe Hypoglycemia |
---|---|---|
Symptoms | Sweating, trembling, rapid heartbeat, hunger, tingling lips, anxiety, irritability. | Confusion, difficulty concentrating, weakness, dizziness, blurred vision, slurred speech, incoordination, irrational behavior, seizures, loss of consciousness. Requires assistance from another person. |
Treatment | 15-20 grams of fast-acting carbohydrate (glucose tablets, juice, regular soda). Recheck blood sugar in 15 minutes. | If conscious and able to swallow: 15-20 grams of fast-acting carbohydrate and follow up as in mild hypoglycemia. If unconscious/unable to swallow: Glucagon administration (injection or nasal spray) and immediate call to emergency services (911). |
Glucagon Considerations | Not typically required. | Essential. Family, friends, and caregivers should be trained in its administration. After administration, call 911 and continue to monitor. |
Blood Sugar Level | Typically between 55-70 mg/dL. | Varies depending on the person, but it causes a person to need assistance from someone else to treat the condition. It may be below 55 mg/dL. |