Some individuals are placed on a sliding scale insulin regimens, with different dose ranges for pre-meal and nighttime insulin based on the blood sugar level measured every day.
Make sure to discuss with your doctor how to compute how much insulin you need to inject when hyperglycemia occurs when you are on insulin. For those not on insulin, it may be given under medical supervision in the emergency room. Blood sugar levels can be rechecked after 15 to 30 minutes after receiving the bolus insulin.
Exercising, in theory, is one answer for how to lower your blood sugar level quickly. Physical activity redirects excess blood glucose to muscles as a source of energy. However, the lowering effect of exercise on blood sugar is best seen with regular exercise that is fit for your body condition. Exercise is one of the first lifestyle modifications prescribed to those who have a high risk of developing diabetes.
One important thing to remember though is that exercise can worsen DKA. After checking your blood glucose use a urine ketone test strip if you have one to first confirm that you do not have elevated ketones before attempting to exercise to lower your blood sugar level quickly.
Drinking water may help bring down blood sugar since it can dilute the sugar in the blood and replace the fluids you lost from frequent urination. However, in cases where there is a need to lower blood sugar fast such as in cases of DKA, intravenous hydration under medical care is usually preferred.
Lastly, Know When to See a Doctor
If this is the first time you are experiencing symptoms of hyperglycemia, definitely head to the emergency room.