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What Is Considered A Dangerously Low Blood Sugar Level


What Are The Symptoms Of Dangerous Levels Of Blood Sugar

5 Warning Low Blood Sugar Symptoms – Dangerous Blood Sugar Level

A patient with high blood sugar presents the symptoms such as a dry mouth, fatigue, dry, and itchy skin and an increased appetite. Some people also experience being more thirsty and increased frequency of urination, especially at night.

If not corrected early it can lead to symptoms of dangerous levels of blood sugar like difficulty in breathing, dizziness, rapid weight loss and confusion of mind. Blood sugar level of 300 or above is dangerous and if not treated a condition known as diabetic ketoacidosis or diabetic coma can occur.

Can A Continuous Glucose Monitor Help With Low Blood Sugar

A continuous glucose monitor measures the bodys glucose levels in real-time by sensing the glucose present in tissue fluid .;A CGM typically provides your glucose level every five minutes, which can be really helpful for tracking and finding patterns in how your glucose changes throughout the day. With CGM you can see how much time you spend in your target glucose range each day , notice trends, and develop strategies to improve your diabetes management.;

CGMs can sound alerts when glucose levels drop below a certain threshold or are predicted to do so soon. This can be especially helpful for people who experience hypoglycemia unawareness, nighttime low blood sugar, or frequent hypoglycemic events. CGMs also allow you to share your glucose readings with your loved ones and care-partners in real time, so that they can let you know or help you out if your blood sugar starts to drop.


If you are interested in trying CGM, ask your healthcare team if the technology is available to you. You can also try ten-days of CGM for free.

Treating Mild To Moderate Hypoglycemia

If you start feeling any of the symptoms listed above, check your blood sugar as soon as possible, then follow the chart below to treat low blood sugar. If you have any concerns, or cant test immediately, its best to treat first and check when possible.

If your blood sugar is ;

Eat this

What to do next


51 to 70 mg/dL

10 to 15 grams of fast-acting carbs, such as 4 ounces of fruit juice, 6 to 8 hard candies, or 3 to 4 glucose tablets.

Test your blood sugar again in 15 minutes. Repeat the treatment if necessary.

Under 50 mg/dL

Eat 20 to 30 grams of fast-acting carbs, such as 8 ounces of fruit juice, 12 to 16 hard candies, or 6 to 8 glucose tablets.


Test your blood sugar again in 15 minutes. Repeat the treatment if necessary.

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Factors That Can Affect Blood Sugar Levels

If you have prediabetes or diabetes, you may have insulin resistance or an inability to produce insulin. This means your body has difficulty regulating blood sugar levels on its own.

Its a delicate balance to maintain, so the following list can help you familiarize yourself with factors that can cause your blood glucose levels to go up or down.

Dont Drive When You Have Low Blood Sugar

Coconut Sweetener: Blood Glucose Levels Chart

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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Symptoms Of High And Low Blood Sugar

Both doctors listed symptoms of high blood sugar as increased urination and thirst , fatigue, and unintentional weight loss. Dr. Adimoolam said women specifically could experience recurrent yeast infections. Symptoms of low blood sugar include headache, dizziness and shakiness, nausea, and slurred speech. The main differentiation between symptoms of low and high blood sugar is that “you don’t have this thirst and increased urination,” Dr. Ahn explained.

People who have diabetes can develop what Dr. Adimoolam called “hypoglycemia unawareness,” where they show no symptoms of low blood sugar because they’re using insulin. “Their body is so accustomed to living at low blood sugars that there are no symptoms until the sugar drops to a drastically low number, like less than 50 mg/dL sometimes,” she said. “The body thinks that that low blood sugar is normal and no longer releases counter-regulatory hormones to raise the blood sugar until the value drops.” She emphasized that this rarely happens to those who do not have diabetes.


What Is The Best Thing To Eat When Your Blood Sugar Is Low

To avoid overtreating lows with too much simple carbohydrate or food and then facing a rebound high blood sugar, its best to have go-to;automatic corrections;for hypoglycemia that are;quantity limited and unappealing to overeat.;Glucose tablets and gels, and candies like Smarties, are predictable, relieve low symptoms quickly, and are hard to overeat. Some people with diabetes count out jelly beans, mini-Swedish Fish, gummies, or hard candy and eat the exact amount that will help their blood sugar. Others take a specific amount of juice or another sugar-containing drink.

How do you know how much of your correction to consume? Similar to the 15-15 rule, the only way to discover exactly how much of your go-to correction your body needs is by checking your glucose levels, eating a source of sugar that has been measured out, and then checking again in roughly 15 minutes. This can help you adjust the amount of your source of sugar to raise your blood sugar to your target , but not overshoot. This is a precision dose of carbs. To learn more, read Adam Browns Defeating the Hypoglycemia Binge.

Do not use a low as a reason to eat treats this can cause your blood sugar to spike later. Plus, it connects a food reward with something you want to avoid , which is an easy way to develop a bad habit.

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Which Is More Dangerous Blood Sugar Too High Or Too Low

A persons blood sugar levels can be high, but can also below, depending on their lifestyle and diet. Which is more dangerous?


Blood sugar is medically the definition of the amount of sugar content or glucose substances in the blood. Maintaining sugar levels in the body is not only important for diabetics, but also for healthy people.

Because normal blood sugar levels are important for your bodys performance and health. If it is too high or too low, there will be a disturbing complaint. Know which conditions are more dangerous so you can be more alert.

A Few Final Notes On Keeping Blood Sugar Stable

What Is High Blood Sugar Levels – Blood Glucose Levels Explained – Normal Sugar Level In Blood

Taking an active, intentional approach to your blood sugar levels is crucial to your quality of life and overall health, ONeill says. Avoiding too-high or too-low blood sugar levels will help you avoid adverse symptoms and health complications, and staying within your target range can enable you to feel your best and do whatever you want to do in life, she says.

Test your blood sugar regularly, listen to your body, and dont ever hesitate to reach out to your doctor.

Additional reporting by Karen Appold.


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Prevention Of Low Blood Sugar

Do not skip or delay meals. If your diet plan includes snacks, make sure to take these.

Measure insulin dosage carefully and inject it properly. If you cannot see well, a family member or a visiting nurse can prepare your insulin injections for you.

Take only the prescribed amount of insulin or oral medication for diabetes that your doctor has ordered.

Keep exercise consistent from day to day. Eat a snack or reduce your insulin prior to unusual exercise.


If you are taking insulin, notify your doctor if you have low blood sugars four or more times per week or if you have a severe low blood sugar. Severe low blood sugars are those less than 40 mg., those requiring help from another person, or those which cause you to have a convulsion or become unconscious.

If you are taking oral medication for your diabetes notify your doctor or nurse if blood sugars are running less than 80 mg. or if you have a severe 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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What Else Can You Do To Control Blood Sugar Levels

Yes. People with diabetes should wear identification stating they have diabetes and whether they have recurrent low blood sugar. Those at risk for the health condition should be counseled on checking blood sugars before they drive a car, operate heavy machinery, or do anything physically taxing. In addition, it is important to carry a quick-acting glucose source at all times, and keep a source in their car, office, and by their bedside. Efforts should be made to minimize the hypoglycemic effects of drug regimens and to avoid variable surges in exercise, activity, and drinking alcohol.

How Serious Is Hypoglycemia

Normal Blood Sugar Level For Indian Female

Hypoglycemic episodes can range from mild to severe.

Mild hypoglycemia can usually be treated by the individual and are to be expected to some degree in people on insulin. Mild hypos are not associated with significant long term health problems unless they are occurring very regularly or for long periods of time.

Severe hypoglycemia, however,;will require treatment from someone else and may require an ambulance. Severe hypos can lead to immediate danger if not treated immediately. Whilst rare, severe hypos can potentially lead to coma and death.


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How Can I Prevent Low Blood Glucose

All people with diabetes:

  • If you experience low blood glucose often, ask your doctor if setting a higher goal for your A1C level may be appropriate.
  • Ask your doctor to look at the test results from your home blood glucose monitor. These results reveal how often you have low blood glucose and when these episodes occur. Your doctor will look for patterns to see if low glucose happens after exercise or at certain times of day, for example.
  • If you’ve had low blood glucose in the past, consider wearing a medical alert bracelet so that others will know that you have diabetes in the event of an emergency.
  • Keep a fast-acting carbohydrate in your bag, desk drawer, car and other places for easy access. Good options include hard candy, fruit juice or glucose paste or tablets, which can be purchased at most pharmacies.
  • Ask your doctor for an emergency glucagon kit. This kit contains a fast- acting medication that can be injected in case of loss of consciousness because of low blood glucose. Keep one kit at home and one at work or school.
  • Monitor your blood glucose regularly so that low levels can be corrected before symptoms progress.

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. ;

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What Drinks And Foods Raise Blood Sugar Fast

  • 4 teaspoons of sugar
  • 1/2 can of regular soda or juice

Many people like the idea of treating low blood sugar with dietary treats such as cake, cookies, and brownies. However, sugar in the form of complex carbohydrates or sugar combined with fat and protein are much too slowly absorbed to be useful in acute treatment.

Once the acute episode has been treated, a healthy, long-acting carbohydrate to maintain blood sugars in the appropriate range should be consumed. Half a sandwich is a reasonable option.

If the hypoglycemic episode has progressed to the point at which the patient cannot or will not take anything by mouth, more drastic measures will be needed. In many cases, a family member or roommate can be trained in the use of glucagon. Glucagon is a hormone that causes a rapid release of glucose stores from the liver. It is an injection given intramuscularly to an individual who cannot take glucose by mouth. A response is usually seen in minutes and lasts for about 90 minutes. Again, a long-acting source of glucose should thereafter be consumed to maintain blood sugar levels in the safe range. If glucagon is not available and the patient is not able to take anything by mouth, emergency services should be called immediately. An intravenous route of glucose administration should be established as soon as possible.

What Should I Do If My Blood Sugar Is Low

What is a dangerous level of Blood Sugar

A ‘hypo’ is usually defined as a blood glucose below 4 mmol/L. A useful way to remember it is ‘Five, don’t drive; four is the floor’. In other words, if your blood glucose is below 5 mmol/L, you shouldn’t drive. If it’s below 4 or you have symptoms of a hypo:

  • Stop what you’re doing .
  • Check your blood glucose if you haven’t already.
  • Immediately eat some glucose tablets or sugary sweets or drink fruit juice or a sugary drink – the standard recommended amount is 15-20 grams of fast-acting carbohydrate.
  • Warn anyone you’re with about what’s happening, so they can help if your symptoms get worse.
  • Relax for 15 minutes or so while your blood glucose rises.
  • Check your blood glucose again. Don’t drive until at least 45 minutes after it has risen above 5 mmol/L.
  • You may also need to eat another snack, or a meal if it’s due – your medical team can advise.

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What Causes Hypoglycemia

If you have diabetes, there are common triggers to avoid. If youre diabetic and experience any of the above low blood sugar symptoms after any the following behaviors, its important to alert your physician to see whether you have dangerously low blood sugar.

  • Too few carbohydrates. As carbohydrates are your bodys main source of glucose, not having enough of them can cause a drop in blood sugar.
  • Skipping meals. Just like consuming too few carbohydrates, skipping meals can prevent your body from receiving the energy it needs from glucose.
  • Strenuous physical activity. Exercising more than usual, especially if you haven’t eaten enough carbohydrates at a meal, can cause a hypoglycemic episode.
  • Excessive drinking. Alcohol can interfere with your bodys ability to metabolize glucose.
  • Not eating soon enough after insulin treatment. If you take insulin as prescribed during mealtimes, but delay eating, this can cause hypoglycemia.
  • Too much insulin. If you take too much insulin, this can cause your blood sugar to crash.

Levels In The Morning

The best time to check blood sugar levels in the morning is right when you wake up and before you eat anything. This gives you a glimpse of what may be happening overnight, and it gives you a baseline for the day.

These are goal levels, according to;The Joslin Diabetes Center:

  • Under 70 mg/dl if you do not have diabetes.
  • 70 to 130 mg/dl if you have diabetes.

The dawn effect can often lead to a high morning measurement in diabetes. This is your bodys tendency to get ready for the day by raising blood sugar by increasing levels of counter-regulatory hormones the ones that counteract insulin as in normal blood sugar. For people with diabetes, you do not have the capacity to counterbalance this rise in blood sugar, so levels can be dangerously high.

Ways to lower your morning blood sugar value include:

  • Eating dinner earlier
  • Checking your medications making sure you are taking them properly and asking your doctor if they are correct
  • Going for a walk after dinner

Your friend, relative, or coworker should call 911 for help if:

  • You pass out and no glucagon is available ;
  • You need a second dose of glucagon ;
  • You had glucagon, but are still confused ;
  • Your blood sugar stays too low 20 minutes after treatment or doesnt respond to your usual treatments ; ;

The emergency medical technicians can give you IV sugar . This raises your blood sugar level right away. You might need to stay in the hospital for a few hours.;

Other things to know about hypoglycemia:

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