What type of system is required to maintain the amount of sugar in the blood at a certain level, making sure it does not rise too high or fall too low?

The only way to know for sure if you're having a low blood sugar level is to test. Blood sugar levels can be tested with a . This computerized device measures and displays the amount of glucose in a blood sample. But if you can't quickly check your blood sugar level, it's important to treat yourself for hypoglycemia immediately to prevent symptoms from getting worse.

Explanation:

Sometimes a person with diabetes may have symptoms of low blood sugar levels, but blood sugar levels are not actually low. This is a called a false reaction. The hormone adrenaline (mentioned above) is not just released when blood sugar drops too low — it's also released when blood sugar levels fall quickly when they're too high. If you're having a false reaction, you might actually have blood sugar levels in a healthy range but feel as if you have low blood sugar. Testing blood sugar levels before treating yourself for hypoglycemia can help you figure out if you're having a false reaction.

Some people with diabetes don't actually notice the typical signs of low blood sugar levels. For them it's even more important to check blood glucose levels often and take extra precautions to prevent low blood sugar (see our prevention tips below). If you're having trouble feeling the symptoms of low blood sugar, let your diabetes health care team know.

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