What are the signs of low blood glucose (hypoglycemia)?
There is a range of symptoms associated with low blood glucose levels, as each individual may experience them differently. These signs can manifest rapidly due to the release of adrenaline and include a racing heart, sweating, tingling sensations, and feelings of anxiety.
Common signs and symptoms of low blood glucose
- Feeling shaky
- Being nervous or anxious
- Sweating, feeling clammy or chilly
- Irritability, impatience
- Confusion
- Fast heartbeat
- Feeling lightheaded or dizzy
- Experiencing hunger
- Feeling nauseous
- Pale skin tone
- Feeling sleepy
- Weakness, lack of energy
- Blurred or impaired vision
- Tingling or numbness in lips, tongue, or cheeks
- Headaches
- Issues with coordination, clumsiness
- Nightmares or crying during sleep
- In severe cases: seizures
How to tell if you have low blood glucose
To determine if you are experiencing low blood glucose, it is crucial to use a glucose meter or continuous glucose monitoring (CGM) device. If symptoms arise and you cannot check your blood glucose levels immediately, it is important to treat the suspected hypoglycemia promptly. Checking glucose levels promptly allows for appropriate treatment and helps prevent blood glucose levels from spiking too high.
Recognizing the signs of low blood glucose is essential for taking swift action. Informing those around you about the symptoms can provide valuable assistance during instances of severe hypoglycemia.
Additionally, it is important to always carry a source of quick-acting sugar with you, such as glucose tablets or a sugary beverage, in case of emergencies. It is recommended to check your blood sugar levels regularly and to follow a diabetes management plan provided by your healthcare provider to prevent episodes of hypoglycemia.
Hypoglycemia unawareness
Symptoms of hypoglycemia typically begin when blood glucose levels drop below 70 mg/dL, indicating the need to raise glucose levels promptly. Some individuals may not perceive any symptoms, a condition known as hypoglycemia unawareness.
If unaware of low blood glucose levels, regular monitoring is crucial, especially before driving or in situations where frequent episodes of low blood sugar occur.
What causes low blood glucose unawareness?
Hypoglycemia unawareness is more common in cases where low blood glucose levels are frequent or in individuals with longstanding diabetes. Adjusting blood glucose targets or treatment plans can help prevent severe episodes of low blood sugar.
Is it possible to start sensing the symptoms of low blood glucose again after developing hypoglycemic unawareness?
Regaining early warning signs requires avoiding low blood glucose levels for several weeks. Working closely with a diabetes care team is essential to managing hypoglycemia unawareness effectively.
What if I have low glucose symptoms when it isn’t low?
Symptoms of low blood glucose can manifest even when blood glucose levels are above 70 mg/dL. Consult your diabetes care team if you experience low blood sugar within the target range.
Tips for managing hypoglycemia unawareness:
- Carry a source of fast-acting glucose with you at all times, such as glucose tablets or gel, in case of emergency.
- Inform friends, family, and coworkers about your condition and how they can help in case of a hypoglycemic episode.
- Wear a medical alert bracelet or necklace that indicates you have diabetes and are at risk of hypoglycemia.
- Educate yourself about the symptoms of low blood sugar and how to respond appropriately in different situations.
- Maintain regular communication with your healthcare team to adjust your treatment plan as needed to prevent hypoglycemia episodes.
How do you treat low blood glucose?
Consuming carbohydrates is crucial to elevate glucose levels during episodes of low blood sugar. Following the “15-15 Rule” when blood glucose falls below 70 mg/dL is recommended.
15-15 Rule
Taking 15 grams of fast-acting carbohydrates, waiting for 15 minutes, and then rechecking blood glucose levels is the recommended protocol. Repeat if necessary until glucose levels rise.
Having a snack containing protein and carbohydrates when blood glucose stabilizes is advised to prevent further episodes of low blood sugar.
What are fast acting carbs?
Focusing on fast-acting carbohydrates is crucial for quickly raising blood glucose levels. Avoid foods high in fiber, fat, or protein for rapid results.
Options for fast-acting carbohydrates include glucose tablets, juice, sugar, or jellybeans, among others.
Examples of fast acting carbs
Keeping fast-acting carbohydrates easily accessible aids in managing low blood sugar effectively. Adhering to the 15-15 Rule ensures proper treatment.
Children may require different amounts of carbohydrates for treating low blood sugar, so consulting their diabetes care team is recommended.
What You Need to Know About Low Blood Glucose (Blood Sugar)
- Low blood glucose is considered below 70 mg/dL
- Use the 15/15 rule for treating low blood sugar
- Prompt treatment is essential for safety
- Severe low blood glucose requires immediate assistance
If someone is unconscious due to low blood glucose, call 911 immediately.
Diabetes involves fluctuations in blood glucose levels, necessitating attention when levels drop too low.
What Is Low Blood Glucose (Hypoglycemia)?
Regular monitoring of blood glucose is crucial for individuals with type 1 diabetes or those using insulin. Taking action to return blood glucose levels to the target range is necessary when levels fall below 70 mg/dL.
Discussing personal blood glucose levels and risk factors with a healthcare professional is important for determining appropriate steps to address low blood sugar.
Alexandra Park shared her experience of initially denying her type 1 diabetes while working as a lead actress on a TV show. It was only when she experienced severe hypoglycemia resulting in loss of consciousness that she accepted her diagnosis and started managing her condition effectively.
Preventing hypoglycaemia
For individuals using insulin to manage diabetes, monitoring blood sugar levels regularly is vital to prevent hypoglycemia. Skipping meals, consuming fewer carbohydrates than planned, drinking alcohol, and exercising can increase the risk of low blood sugar.
Having a plan in place to manage hypoglycemia, such as adjusting insulin doses, consuming carbohydrates before, during, or after physical activity, and educating friends and family about diabetes and the risks of hypoglycemia, is essential.
If hypoglycemia occurs due to an underlying condition other than diabetes, it must be treated promptly to prevent future episodes.
Symptoms of hypoglycaemia
Symptoms of hypoglycemia typically emerge when blood glucose levels drop below four millimoles (mmol) per liter. Diabetic individuals, especially those on insulin therapy, may use a blood glucose meter to monitor levels consistently.
Recognizing early signs and symptoms of hypoglycemia, such as hunger, sweating, dizziness, and fatigue, is critical for swift intervention. Untreated hypoglycemia can lead to drowsiness or loss of consciousness.
Informing your healthcare team if symptoms of hypoglycemia decrease over time is important, as this may necessitate adjustments to your treatment plan. Early detection and intervention play a key role in effectively managing hypoglycemia.
In addition to the symptoms mentioned above, other signs of hypoglycemia may include trembling, confusion, irritability, and a rapid heartbeat. It is essential to treat hypoglycemia promptly by consuming fast-acting carbohydrates, such as fruit juice or glucose tablets, to raise blood sugar levels quickly.
It is also important to follow up with your healthcare provider to determine the underlying cause of recurrent hypoglycemia episodes. They may recommend changes in medication dosage, meal timing, or activity levels to prevent future occurrences.
Remember to always carry a source of glucose with you, such as hard candies or glucose gel, in case of a hypoglycemic emergency. Being prepared and proactive can help you effectively manage and prevent episodes of hypoglycemia.
In addition to the symptoms mentioned, nocturnal hypoglycemia can also lead to confusion, irritability, and difficulty concentrating during the day. It is important for individuals with diabetes who are at risk for nocturnal hypoglycemia to monitor their blood sugar levels closely before going to bed and to consider adjusting their insulin dosage or timing under the guidance of a healthcare provider.
Causes of hypoglycaemia
There are several potential causes of hypoglycaemia, including:
- Skipping meals or not eating enough
- Excessive physical activity
- Too much insulin or other diabetes medications
- Drinking alcohol without eating enough food
- Certain medical conditions, such as liver or kidney disease
- Medications that can lower blood sugar levels
Hypoglycaemia in people with diabetes
Overdose of diabetes medication
Excessive insulin or oral hypoglycemia medications can lead to hypoglycemia. Striking a balance between insulin doses, food intake, and physical activity is crucial for diabetics in preventing low blood sugar. Drinking alcohol on an empty stomach can also trigger hypoglycemia.
Exercise, food and alcohol
Skipping meals, inadequate carbohydrate intake, excessive exercise, or alcohol consumption can induce hypoglycemia in individuals with diabetes. Identifying the specific cause of a hypoglycemic episode is not always feasible.
Hypoglycaemia in people without diabetes
Reactive hypoglycaemia
Reactive hypoglycemia in non-diabetics may result from excessive insulin production after consuming a high-carbohydrate meal. Other causes include benign tumors in the pancreas and severe illnesses affecting the liver, kidneys, or thyroid gland.
Other possible causes
Other potential causes of hypoglycemia in non-diabetics include fasting, alcohol abuse, certain medications, and various health conditions impacting the adrenal glands.
Treating hypoglycaemia
In most cases, hypoglycemia can be self-treated once symptoms are recognized.
Treating an episode of hypoglycaemia
In case of hypoglycaemia, immediate treatment involves consuming sugary foods or drinks quickly, followed by longer-acting carbohydrates to stabilize blood sugar levels. It is crucial to avoid fatty foods initially, as they do not provide enough sugar for rapid correction of blood sugar levels.
If symptoms persist, it is advisable to seek medical advice to identify the root cause of recurring hypoglycaemic episodes.
In situations of severe hypoglycaemia leading to loss of consciousness, swift action is necessary. Administering glucagon, if available, and contacting emergency services if needed are essential steps to take.
Feeding or giving liquids to an unconscious person to prevent choking should never be attempted.
For individuals with diabetes, adhering to the prescribed medication plan and having regular meals can help in preventing hypoglycaemia. Monitoring blood sugar levels is of utmost importance.
To keep blood sugar levels stable, it is recommended to check them regularly with a blood glucose meter. Since levels can fluctuate throughout the day, monitoring them multiple times might be necessary.
Factors like exercise and alcohol consumption can affect blood sugar levels. Adjusting insulin doses accordingly and limiting alcohol intake can help prevent glucose level dips.
Recognizing hypoglycaemia symptoms, educating friends and family on appropriate responses, and carrying identification indicating the condition for quick assistance are important.
Having sugary snacks and medication like glucose gel or glucagon injections on hand can help in treating severe cases promptly. It is also beneficial to train caregivers on administering injections if required.
To avoid nighttime hypoglycaemia, it is recommended to keep sugary items nearby, have a snack before bedtime, and monitor glucose levels during the night.
Individuals using insulin for diabetes should notify the DVLA, test blood sugar levels before driving, carry rapid-acting carbs, and refrain from driving with low glucose levels. In case of hypoglycaemia while driving, pull over, treat it, and report episodes to the DVLA if they occur frequently.
For further information on hypoglycaemia and driving, refer to the GOV.UK website.