Low blood sugar means not having enough sugar, also called glucose, in
the blood. Low blood sugar is also called hypoglycemia, insulin shock or
insulin reaction. Glucose is needed by the body’s cells. A normal blood
sugar level is 70 to 100. A blood sugar level below 70 is low.
Causes
Sometimes the cause is not known, but it may be from:
• Too much insulin or diabetes pills
• Meals that are skipped or delayed
• Too much exercise or unplanned exercise
Signs
There may be no warning signs or you may:
• Feel dizzy, shaky, nervous, weak or tired
• Sweat
• Feel hungry
• Feel moody or grumpy or not think clearly
• Not be able to speak
• Have blurred vision
• Feel a fast heart beat
• Feel numb around the mouth or lips
• Have a headache
Your Care
When your blood sugar is low, you need to eat or drink food with sugar.
Do not eat too much. Your blood sugar may go too high. Eat or drink
one of these:
• ½ cup or 120 milliliters of juice or soda (no diet, sugar free or calorie
free drinks)
• 3 or 4 glucose tablets
• 1 tablespoon or 15 milliliters of sugar
• 1 cup or 240 milliliters of milk
Check your blood sugar in 15 minutes. If you blood sugar is still less
than 70 or if you are not feeling better, eat or drink another serving of
food or drink from the list.
When your blood sugar is 70 or more, you still need to eat something to
keep your blood sugar from dropping again.
• If it is time for your next meal soon, eat your normal meal.
• If your next meal is more than an hour away, eat a snack. Try one of
these:
Half a sandwich and 1 cup or 240 milliliters of milk, or
3 crackers, 2 ounces of cheese and a small apple
To Prevent Low Blood Sugar
• Follow your meal plan. Eat meals and snacks at the same time each
day. Do not miss or delay meals.
• Check and record your blood sugar levels. If you have low blood
sugars more than 2 times in a week, call your doctor or diabetes
educator. Changes may need to be made to your diet, medicine or
exercise routine.
• Take your diabetes medicine as directed. Do not take extra diabetes
medicine without your doctor’s advice.
• Exercise regularly.
To Stay Safe
• Keep food such as crackers, gels and juice with you at all times.
• Tell other people who work or live with you that you have diabetes
and how to treat low blood sugar.
• Wear a medical bracelet or necklace to tell others that you have
diabetes during a medical emergency.
• If you have Type 1 diabetes, people close to you should learn how to
give a glucagon shot. Glucagon is a hormone used to raise blood
sugar when a person is not alert or awake. A nurse can teach them
how to give a glucagon shot.
• Call your doctor when you have frequent low blood sugars or wide
swings from high to low.
• Talk with your doctor and dietitian before starting a weight loss diet.
• Keep all your appointments with your doctor, diabetes nurse and
dietitian.
the blood. Low blood sugar is also called hypoglycemia, insulin shock or
insulin reaction. Glucose is needed by the body’s cells. A normal blood
sugar level is 70 to 100. A blood sugar level below 70 is low.
Causes
Sometimes the cause is not known, but it may be from:
• Too much insulin or diabetes pills
• Meals that are skipped or delayed
• Too much exercise or unplanned exercise
Signs
There may be no warning signs or you may:
• Feel dizzy, shaky, nervous, weak or tired
• Sweat
• Feel hungry
• Feel moody or grumpy or not think clearly
• Not be able to speak
• Have blurred vision
• Feel a fast heart beat
• Feel numb around the mouth or lips
• Have a headache
Your Care
When your blood sugar is low, you need to eat or drink food with sugar.
Do not eat too much. Your blood sugar may go too high. Eat or drink
one of these:
• ½ cup or 120 milliliters of juice or soda (no diet, sugar free or calorie
free drinks)
• 3 or 4 glucose tablets
• 1 tablespoon or 15 milliliters of sugar
• 1 cup or 240 milliliters of milk
Check your blood sugar in 15 minutes. If you blood sugar is still less
than 70 or if you are not feeling better, eat or drink another serving of
food or drink from the list.
When your blood sugar is 70 or more, you still need to eat something to
keep your blood sugar from dropping again.
• If it is time for your next meal soon, eat your normal meal.
• If your next meal is more than an hour away, eat a snack. Try one of
these:
Half a sandwich and 1 cup or 240 milliliters of milk, or
3 crackers, 2 ounces of cheese and a small apple
To Prevent Low Blood Sugar
• Follow your meal plan. Eat meals and snacks at the same time each
day. Do not miss or delay meals.
• Check and record your blood sugar levels. If you have low blood
sugars more than 2 times in a week, call your doctor or diabetes
educator. Changes may need to be made to your diet, medicine or
exercise routine.
• Take your diabetes medicine as directed. Do not take extra diabetes
medicine without your doctor’s advice.
• Exercise regularly.
To Stay Safe
• Keep food such as crackers, gels and juice with you at all times.
• Tell other people who work or live with you that you have diabetes
and how to treat low blood sugar.
• Wear a medical bracelet or necklace to tell others that you have
diabetes during a medical emergency.
• If you have Type 1 diabetes, people close to you should learn how to
give a glucagon shot. Glucagon is a hormone used to raise blood
sugar when a person is not alert or awake. A nurse can teach them
how to give a glucagon shot.
• Call your doctor when you have frequent low blood sugars or wide
swings from high to low.
• Talk with your doctor and dietitian before starting a weight loss diet.
• Keep all your appointments with your doctor, diabetes nurse and
dietitian.
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