What happens if your blood sugar is over 1000 mg/dL? Why is this dangerous? The body cannot sustain blood glucose levels of 1000 or anywhere close to this amount. Long-term levels of 200 to 300 or even lower cause damage to blood vessels, nerves, kidneys and eyes, greatly increasing the risk of cardiovascular disease and serious kidney problems.
When blood sugar levels reach 600, a diabetic coma may occur. This is an extremely dangerous and potentially life-threatening condition that people with diabetes and hyperglycemia are at risk for. Some people who go into a diabetic coma are not aware that they have diabetes. Being aware of blood glucose levels and the symptoms of a diabetic coma is important. Usually before such a major complication occurs there are warning signs such as:
- Increased thirst
- More frequent urination
- Stomach pain
- Trouble breathing
- Breath with a fruity-odor
- Altered mental state
If these symptoms occur seek medical attention right away. They will probably develop over a period of weeks. Check your blood sugar levels if possible. If vomiting starts or symptoms worsen, get to a hospital right away.
One major cause of a diabetic coma is diabetic ketoacidosis, which can also lead to death if untreated. Diabetic ketoacidosis occurs when insulin levels are so low that the body burns its own fat as fuel. Ketones are a natural byproduct of the breakdown of fat. Excess ketones cause the body to become dangerously acidic, leading to symptoms such as nausea, sweet breath, confusion and trouble breathing, which can lead to a coma and death. Ketoacidosis is most common with type 1 diabetics, although it is possible for it to happen to a type 2 diabetic.
People who have type 2 diabetes also have to be aware of hyperosmolar syndrome, which occurs at blood sugar levels of 600 mg/dL. It is more common amongst older people who are more prone to dehydration, and to diabetics who are taking steroid medications. In this case very high blood sugar thickens the blood. As a reaction the body filters out the excess sugar though the urine, leading to the release of a lot of fluids. Symptoms of hyperosmolar syndrome include vision changes, dry mouth, fever, increased urination, warm skin but no sweating, weakness on one side of the body, confusion and tiredness. It can also lead to a coma and death if not treated.
All of these instances are medical emergencies. Contact medical help immediately if your blood sugar levels spike or if these symptoms occur. Keep in mind that not everyone that has diabetes has been diagnosed — it is still possible to reach dangerous blood sugar levels even if you do not consider yourself a diabetic.