Severe Hypoglycemia: An Emergency Guide for a Blood Sugar Crash Severe hypoglycemia, or a critically low blood sugar level, is a dangerous medical con...
Severe Hypoglycemia: An Emergency Guide for a Blood Sugar Crash
Severe hypoglycemia, or a critically low blood sugar level, is a dangerous medical condition that can quickly become life-threatening, especially for individuals with diabetes. It's vital to understand the causes, symptoms, treatment, and prevention of severe hypoglycemia to react effectively in an emergency. This guide provides an in-depth look at managing a severe blood sugar crash, ensuring you're prepared to help yourself or someone else experiencing this potentially perilous situation.

Understanding Hypoglycemia: Causes and Risk Factors
Hypoglycemia occurs when the level of glucose, your body's primary energy source, drops too low. While it is most common in people with diabetes, particularly those using insulin or certain oral medications, non-diabetics can also experience hypoglycemic episodes, albeit less frequently.
Causes in Diabetics:
- Excessive Insulin Dosage: Taking too much insulin relative to food intake.
- Skipping Meals: Not eating enough carbohydrates to match insulin dosage or medication.
- Intense Exercise: Physical activity without adequate carbohydrate intake or adjustment of medication.
- Alcohol Consumption: Alcohol can interfere with the liver's ability to release glucose into the bloodstream, particularly when consumed without food.
- Medication Interactions: Certain medications can enhance the effects of diabetes medications, leading to hypoglycemia.
Causes in Non-Diabetics:
- Reactive Hypoglycemia: Occurs a few hours after eating, potentially due to excessive insulin release.
- Fasting Hypoglycemia: Can be caused by medical conditions such as insulinomas (tumors that produce insulin), liver or kidney disease, or hormonal deficiencies.
- Post-Gastric Bypass: Altered digestive process can lead to rapid glucose absorption and subsequent overproduction of insulin.
Risk Factors for Severe Hypoglycemia:
- History of Hypoglycemia: Individuals who have experienced hypoglycemia previously are at a higher risk.
- Impaired Awareness of Hypoglycemia: Some people lose the ability to recognize the early warning signs of low blood sugar.
- Kidney or Liver Disease: These conditions can affect how the body processes glucose and medications.
- Cognitive Impairment: Dementia or other cognitive issues can make it difficult to manage diabetes effectively.
- Elderly Individuals: Age-related physiological changes and polypharmacy (taking multiple medications) can increase the risk.
| Risk Factor | Impact | Prevention Strategy | | :------------------------------ | :------------------------------------------------------------- | :-------------------------------------------------------------------------- | | History of Hypoglycemia | Increased likelihood of future episodes | Regular blood glucose monitoring, medication adjustments with doctor. | | Impaired Hypoglycemia Awareness | Difficulty recognizing symptoms early | Continuous glucose monitoring (CGM), hypoglycemia awareness training. | | Kidney/Liver Disease | Altered glucose and medication processing | Regular monitoring by a healthcare provider, medication dosage adjustments. | | Intense Exercise | Using more glucose than anticipated | Check blood sugar and/or consume simple carbs (glucose tabs,juice) every 30 minutes. |
Related reading: Decoding Your Blood Sugar Test Results From Fasting To A1C
Recognizing the Symptoms of Severe Hypoglycemia
Early recognition of hypoglycemia symptoms is crucial to prevent a progression to severe hypoglycemia. Symptoms can vary among individuals, but common warning signs include:
Related reading: Your A1C Blood Sugar Goals What Number Should You Be Aiming For
Early Symptoms:
- Shakiness
- Sweating
- Dizziness or Lightheadedness
- Hunger
- Irritability or Mood Changes
- Confusion
- Rapid Heartbeat
- Pale Skin
If blood sugar continues to drop without intervention, more severe symptoms can develop:
Severe Symptoms:
- Inability to Concentrate or Confusion
- Slurred Speech
- Loss of Coordination
- Seizures
- Loss of Consciousness
- Coma
It's important to note that not everyone experiences the same symptoms, and some individuals may not have any warning signs before a severe episode. This is known as hypoglycemia unawareness.
Emergency Treatment: Step-by-Step Guide
Severe hypoglycemia requires immediate action to prevent brain damage, coma, or even death. Here’s a detailed guide on how to respond effectively:
Step 1: Assess the Situation
- Check for Responsiveness: Gently try to wake the person up. If they are conscious and able to swallow, proceed to Step 2. If they are unconscious or having a seizure, move directly to Step 3.
- Confirm Hypoglycemia (If Possible): If the person has a glucose meter, check their blood sugar level. A reading below 70 mg/dL (3.9 mmol/L) indicates hypoglycemia. However, do not delay treatment if a meter is not immediately available.
- Look for Medical Identification: Check for a medical alert bracelet, necklace, or card indicating the person has diabetes.
Step 2: Administer Fast-Acting Carbohydrates (Conscious Individuals)
- Give Quick Sugars: Provide a source of fast-acting carbohydrates to raise blood sugar levels quickly. Examples include:
- Glucose Tablets: Usually, 3-4 tablets (follow package instructions).
- Glucose Gel: One tube of glucose gel.
- Fruit Juice: 4 ounces (120 ml) of juice (e.g., apple or orange).
- Regular Soda: 4 ounces (120 ml) of non-diet soda.
- Honey or Sugar: 1 tablespoon.
- Avoid Fatty Foods: Avoid giving foods high in fat, such as chocolate or pastries, as fat can slow the absorption of glucose.
- Re-check Blood Sugar: After 15 minutes, check blood sugar levels again. If the blood sugar is still below 70 mg/dL (3.9 mmol/L), repeat the carbohydrate administration.
- Follow with a Complex Carbohydrate and Protein Snack: Once blood sugar is above 70 mg/dL (3.9 mmol/L), give a snack containing complex carbohydrates and protein, such as:
- Crackers with Peanut Butter
- Cheese and Whole Grain Bread
- A Small Sandwich
Step 3: Administer Glucagon (Unconscious Individuals)
- Call for Help: First, call emergency services (911 in the US, 999 in the UK, 112 in Europe) and explain that someone is experiencing severe hypoglycemia and is unconscious.
- Administer Glucagon: Glucagon is a hormone that stimulates the liver to release stored glucose into the bloodstream. It is available as an injection or nasal spray and is usually prescribed to individuals at risk of severe hypoglycemia.
- Locate Glucagon Kit: Know where the glucagon kit is stored beforehand.
- Prepare Glucagon: Follow the instructions in the glucagon kit. Typically, this involves mixing the powder with the liquid in the syringe.
- Administer Injection:
- Injection: Inject the glucagon into the thigh, buttock, or arm, following the kit’s instructions.
- Nasal Spray: Administer the nasal spray into one nostril, following the kit's instructions.
- Turn Person on Their Side: After administering glucagon, turn the person onto their side (recovery position) to prevent choking if they vomit.
- Monitor: Wait for the person to regain consciousness, which usually takes 5-15 minutes. Do not attempt to give food or drink to an unconscious person due to the risk of choking.
- Seek Medical Attention: Even if the person regains consciousness, they still need immediate medical attention. Glucagon's effects are temporary, and blood sugar levels can drop again. Explain the situation to the paramedics when they arrive.
Step 4: Post-Emergency Care
- Medical Evaluation: It is crucial to seek medical evaluation following a severe hypoglycemic episode to determine the underlying cause and adjust the treatment plan.
- Adjusting Medications: Work with a healthcare provider to review and adjust diabetes medications, insulin dosages, or other medications that may have contributed to the event.
- Education: Ensure the individual and their caregivers understand how to prevent future episodes and are trained in recognizing and treating hypoglycemia.
- Continuous Glucose Monitoring (CGM): Consider using a CGM to monitor blood glucose levels continuously and receive alerts for highs and lows.
- Hypoglycemia Awareness Training: For individuals with impaired hypoglycemia awareness, training can help them recognize subtle early symptoms and take proactive steps to prevent severe episodes.
| Action | Explanation | Rationale | | :------------------------------ | :------------------------------------------------------------------------- | :------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------ | | Assess Responsiveness | Determine if the person is conscious and able to swallow. | Guides the immediate treatment approach: conscious individuals can take oral glucose; unconscious individuals require glucagon. | | Administer Fast-Acting Carbs | Give quick sugars (glucose tablets, juice, regular soda) if conscious. | Raises blood sugar levels rapidly to counteract hypoglycemia. Avoiding fatty foods ensures quicker absorption. | | Administer Glucagon | Inject or administer glucagon nasal spray if unconscious. | Glucagon stimulates the liver to release stored glucose into the bloodstream, raising blood sugar levels when oral administration is not possible. | | Call Emergency Services | Call for immediate medical assistance in cases of unconsciousness. | Ensures the person receives professional medical care, including monitoring and potential further treatment. | | Post-Emergency Medical Evaluation | Seek thorough medical assessment after the event. | Determines the cause of the hypoglycemia, adjusts medication regimens, and provides education to prevent future occurrences. Continuous monitoring and hypoglycemia awareness training may be considered for those with impaired awareness. |
Prevention Strategies: Minimizing the Risk of Severe Hypoglycemia
Preventing severe hypoglycemia is crucial, especially for individuals with diabetes. Proactive strategies and education can significantly reduce the risk.
Monitoring Blood Glucose Levels:
- Regular Blood Glucose Checks: Consistently check blood glucose levels, particularly before meals, before and after exercise, and at bedtime.
- Continuous Glucose Monitoring (CGM): Consider using a CGM, which continuously monitors blood glucose levels and alerts you to trends and potential lows.
Medication Management:
- Precise Dosing: Take diabetes medications exactly as prescribed by your healthcare provider.
- Avoid Skipping Doses: Be consistent with medication schedules and do not skip doses unless directed by a healthcare provider.
- Medication Review: Periodically review your medication list with your healthcare provider to identify potential interactions that could increase the risk of hypoglycemia.
- Dose Adjustment: Work closely with your healthcare provider to adjust medication dosages based on your activity level, diet, and overall health.
Dietary Considerations:
- Consistent Meal Timing: Eat meals and snacks at regular intervals to maintain stable blood glucose levels.
- Carbohydrate Counting: Learn how to count carbohydrates accurately and match insulin dosages to carbohydrate intake.
- Snacks: Carry snacks, such as glucose tablets, fruit, or granola bars, to treat low blood sugar promptly.
- Avoid Excessive Alcohol: Consume alcohol in moderation and always with food to prevent hypoglycemia.
Exercise Management:
- Blood Glucose Monitoring: Check blood glucose levels before, during, and after exercise.
- Snack Provision: Consume a snack containing carbohydrates before engaging in physical activity, especially prolonged or intense exercise.
- Medication Adjustments: Adjust insulin dosages or medication timing to prevent hypoglycemia during and after exercise, as recommended by your healthcare provider.
Education and Awareness:
- Hypoglycemia Awareness Training: Participate in training programs to improve awareness of hypoglycemia symptoms.
- Educate Family and Friends: Educate family members, friends, and caregivers about the symptoms of hypoglycemia and how to administer glucagon.
- Wear Medical Identification: Wear a medical alert bracelet, necklace, or carry a card indicating you have diabetes and the potential for hypoglycemia.
Sick Day Management:
- Monitor Blood Glucose: Check blood glucose levels more frequently when you are sick.
- Adjust Medication Dosages: Adjust insulin dosages or medication timing as directed by your healthcare provider.
- Stay Hydrated: Drink plenty of fluids to prevent dehydration.
- Eat Carbohydrates: Consume carbohydrate-containing foods or drinks to maintain blood glucose levels, even if you have a reduced appetite.
| Prevention Strategy | Description | Benefits | | :------------------------------ | :------------------------------------------------------------------------------ | :------------------------------------------------------------------------------------------------------------------------------------------ | | Regular Glucose Monitoring | Checking blood glucose levels consistently. | Helps identify and address potential low blood sugar situations promptly. | | Proper Medication Management | Following prescribed medication dosages and schedules. | Prevents medication-induced hypoglycemia due to incorrect dosages or timing. | | Dietary Consistency | Eating meals and snacks at regular intervals. | Maintains stable blood glucose levels by providing a steady supply of glucose. | | Smart Exercise Planning | Monitoring blood glucose levels and consuming snacks before and during exercise. | Prevents exercise-induced hypoglycemia by ensuring adequate glucose availability during physical activity. | | Comprehensive Education | Attending training programs, educating caregivers, and wearing medical IDs. | Improves awareness of hypoglycemia symptoms and ensures appropriate responses in emergency situations. | | CGM | Using continuous glucose monitors for blood sugar monitoring | Provides greater insight into the patients blood sugars in real time and helps monitor trends over a period of time |
Living with Diabetes and Managing Hypoglycemia Risk
Living with diabetes requires a comprehensive and proactive approach to managing blood glucose levels and preventing severe hypoglycemia. It's about integrating self-management skills, continuous education, and close collaboration with a healthcare team into your daily life.
Related reading: Factors Affecting Blood Sugar 9 Things You Might Not Expect
Regular Check-ins with Healthcare Team: Frequent visits to endocrinologists, diabetes educators, and registered dietitians help in customizing diabetes management plans. These experts provide up-to-date advice and adjust treatment strategies as needed.
Psychological Support: Diabetes management can be stressful and emotionally taxing. Accessing psychological support, such as therapy or support groups, can help in coping with the mental health aspects of living with diabetes and preventing burnout.
Family and Community Support: Engage family, friends, and community members in understanding diabetes management and how to support individuals at risk of hypoglycemia. Shared awareness and support can significantly improve outcomes.
By implementing these preventative strategies, being prepared to respond to emergencies, and continuing to enhance your understanding of diabetes, you can drastically mitigate the risk of severe hypoglycemia. This guide serves as a roadmap to prepare you for managing potential crises, and offers you a pathway towards secure blood sugar control.