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What Level of Blood Sugar Is Dangerous?

This blog explains dangerous blood sugar levels, potential symptoms, and complications for diabetic patients. It highlights the importance of monitoring blood sugar and seeking prompt medical help during critical conditions to prevent life-threatening outcomes.

  • 11 Apr 2025
  • 6 min read
  • 19 views

If you have diabetes, you may be facing difficulty managing the lows and highs of this disease. You may even have wondered what is a dangerous glucose level? It means a range that is outside the healthy target. Extremely high and low blood sugars can pose a danger to your overall health, necessitating prompt action. If you have diabetes, checking your blood sugar regularly is important. It will help you determine if your blood sugar level is too low or too high.

What Is A Dangerous Blood Sugar Level?

For diabetic patients, extreme fluctuations in blood sugar can be dangerous for their overall health. If you want to know what is a dangerous glucose level, keep reading ahead as we bring to you important information related to diabetes.

Both too-low (hypoglycemia) and too-high (hyperglycemia) blood sugar levels can lead to many health complications. If your blood sugar level remains too low or high for extended periods, certain physiological symptoms like excess hunger or sudden weight loss emergencies can arise. However, complications can even occur without any symptoms. So, it is important to keep a check on your blood sugar level.

If your blood sugar is higher than 300 mg/dL with high to moderate ketones for a prolonged period and you’re unable to get your blood sugar down, you should seek emergency medical attention. Diabetes patients with above 600 mg/dL blood sugar levels have higher chances of falling into a diabetic coma. In this situation, your blood turns syrupy and thick, and excess sugar passes into your urine from your blood. This triggers a filtering process drawing in fluid from your body in large amounts. This condition is known as diabetic hyperosmolar syndrome. It is life-threatening and you should immediately call your doctor.

Low blood sugar can be dangerous if left untreated. For diabetes patients, low blood sugar means anything that falls under 80 mg/dL. Readings under 40 mg/dL are considered very low and anything under 40 mg/dL is considered potentially fatal and extremely dangerous. In the worst cases, it can even result in death and diabetic coma. However, in most cases, it won’t cause permanent complications unless you experience a traumatic brain injury and brain swelling from falling into a diabetic coma. If you’re experiencing a severely low blood glucose level, and can’t swallow liquids or chew food, you will need an emergency Glucagon shot.

Diabetes alert dogs and glucose monitoring systems can help you detect if your blood glucose level is low on time before it becomes life-threatening. So now that you know what is a dangerous sugar level in blood you should take immediate action to avoid any complications.

Conclusion

You have now got the answer of what blood sugar reading is dangerous. Get immediate medical help if your blood sugar becomes too low or high. You’re also advised to take health insurance to access the health care and medical supervision required to manage this disease.


Disclaimer: The information provided in this blog is for educational and informational purposes only. It is not intended as a substitute for professional advice, diagnosis, or treatment. Please consult your general physician or another certified medical professional for any questions regarding a medical condition. Relying on any information provided in this blog is solely at your own risk, and ICICI Lombard is not responsible for any effects or consequences resulting from the use of the information shared.

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