Dangerously high blood glucose levels (300+) require emergency medical treatment. However, if you find yourself in a situation where you can't get to a doctor or administer your insulin, here are two ways to lower your blood sugar quickly and naturally.

Burn off the Sugar
Use up the glucose in your bloodstream with physical movement. Jog, if you can. Ride on a stationary bicycle or do some calisthenics like jumping jacks. If you are confined to a wheelchair, swing your arms in circular movements. Keep up the activity for at least 10 minutes or more.

Flush out the Sugar
Drink two glasses (8 oz.) of water quickly. Wait for five minutes and drink a third glass. Urinate as soon as possible. Water dilutes the blood and flushes out the sugar from your bloodstream. 

Symptoms that Require Emergency Treatment
If your high blood sugar level does not come down within a few hours of the above temporary measures and is accompanied by any of the following symptoms, seek emergency room treatment immediately:

• vomiting
• nausea
• severe diarrhea
• fevervisual problems
• excessive sleepiness
• foggy or impaired thinking

If left untreated, high glucose levels or hyperglycemia could cause life-threatening dehydration and loss of consciousness (diabetic coma.)

Not a Replacement for Doctor-prescribed Care
These are temporary measures for lowering your glucose level and should not be used as a replacement for doctor-prescribed treatment. Keep your blood sugar levels within acceptable levels by taking appropriate medication, regular exercise, plenty of water and a healthy diet monitored by your diabetic counselor.

Why Blood Sugar Spikes
Common reasons for skyrocketing glucose levels include the following:

• not taking insulin or diabetic medication properly
• not getting enough exercise
• not following dietary guidelines for diabetics (eating starches and sugars)
• malfunction of diabetic pumps
• change in medications
• illness or infection
• surgery
• stress or trauma
• pregnancy

How to Recognize High Blood Sugar Level without Testing
Sometimes, there is no way to test your blood sugar (running out of testing supplies or leaving them at home when you're out) but there are symptoms to watch for that appear before you reach the critical stages that require emergency room treatment:

• dry mouth
• increased thirst
• increased urination
• increased hunger
• blurred vision
• sweating
• drowsiness
• fatigue

Any of the above symptoms are signs of high blood sugar. Be sure to follow the two emergency, temporary blood glucose lowering methods (engage in physical exercise and drink water) and test your blood as soon as possible. Your medication dosage may need to be adjusted and your doctor may have further guidelines for you to follow.

Other natural methods for lowering blood sugar

There are other natural, clinically proven ways to lower high blood glucose-although they are NOT fast-acting-that include consuming green and black tea, cinnamon and cactus petal juice (opuntia.) Please read “How to Lower Blood Sugar with Cactus” on Hubpages.com.