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When Are Blood Sugar Levels Dangerous

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High Blood Sugar Symptoms

If you’ve had diabetes for any length of time at all, you’ve probably seen lists of the signs and symptoms of high blood glucose dozens of times. Doctors and diabetes educators hand them out. Hundreds of websites reprint them. Most diabetes books list them. You likely know some of the items on the list by heart: thirst, frequent urination, blurry vision, slow healing of cuts, and more. But have you ever stopped to wonder why these symptoms occur? How does high blood glucose cause frequent urination, make your vision go blurry, or cause all of those other things to happen? Here are some answers to explain what’s going on in your body when you have high blood glucose. Setting the stage for high blood glucose High blood glucose (called hyperglycemia by medical professionals) is the defining characteristic of all types of diabetes. It happens when the body can no longer maintain a normal blood glucose level, either because the pancreas is no longer making enough insulin, or because the body’s cells have become so resistant to insulin that the pancreas cannot keep up, and glucose is accumulating in the bloodstream rather than being moved into the cells. What is high blood sugar? Continue reading >>

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Popular Questions

  1. thatone1967

    A work colleague was taken ill at work on Friday and taken off to hospital by his dad.
    He is still in, apparently his heart rate was high, but he has also been diagnosed as type 2 diabetes, his blood sugar upon admission was apparently 22.
    The mrs has type 2 also, but I have never seen her this high.
    The chap at works speech got progressively worse over the preceding couple of days ( has does not have the best speech, so we did not notice initially) my thoughts when he was taken away was possibly a stroke (although we did the basic checks and all seemed fine)
    How dangerous is 22?

  2. K77 CTR

    22 as a one off is not dangerously high but if it remained high there is the risk of a diabetic coma (diabetic ketoacidosis) which I life threatening.
    I suspect if your colleague didn't know they were diabetic then they have probably been running high for a while and that's why they were experiencing the symptoms you describe.

  3. PintOfKittens

    K77 CTR said:
    22 as a one off is not dangerously high but if it remained high there is the risk of a diabetic coma (diabetic ketoacidosis) which I life threatening.
    I suspect if your colleague didn't know they were diabetic then they have probably been running high for a while and that's why they were experiencing the symptoms you describe. Its dangerous but not life threatening - DKA takes quite a while to set in, when my brother had a random blood glucose of 22, I rushed him into A&E, 15mins later, he was on an insulin drip.
    Long term high blood sugar can cause end organ damage, damage to eyes, lead to strokes / heart attacks...

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