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Home blood sugar testing

Diabetes - home glucose testing; Diabetes - home blood sugar testing

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Manage your blood sugar

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If you have diabetes, check your blood sugar level as often as instructed by your health care provider. Record the results. This will tell you how well you are managing your diabetes. Checking blood sugar helps you stay on track with your nutrition and activity plans.

The most important reasons to check your blood sugar at home are to:

Check Your Blood Sugar Often

Not everyone with diabetes needs to check their blood sugar every day. Others need to check it many times a day.

Usual times to test your blood sugar are before meals and at bedtime. Your provider may ask you to check your blood sugar 2 hours after a meal or even sometimes in the middle of the night. Ask your provider when you should check your blood sugar.

Other times to check your blood sugar may be:

How to Prepare for the Test

Have all test items within reach before starting. Timing is important. Clean the needle prick area with soap and water. Completely dry the skin before pricking. Do not use an alcohol pad or swab to clean the skin. Alcohol is not effective in removing sugar residue from the skin.

How the Test is Done

You can buy a testing kit from a pharmacy without a prescription. Your provider can help you choose the right kit, set up the meter, and teach you how to use it.

Most kits have:

To do the test, prick your finger with the needle and place a drop of blood on a special strip. This strip measures how much glucose is in your blood. Some monitors use blood from areas of the body other than the fingers, reducing discomfort. The meter shows your blood sugar results as a number on a digital display. If your vision is poor, talking glucose meters are available so that you don't have to read the numbers.

Be aware that no meter or strip is accurate 100% of the time. If your blood sugar value is unexpectedly high or low, measure again with a new strip. Do not use strips if the container has been left open or if the strip has gotten wet.

Keep a Record

Keep a record for yourself and your provider. This will be a big help if you are having problems controlling your diabetes. It will also tell you what you did when you were able to control your diabetes. To get the most help with controlling your blood sugar, write down:

Blood sugar meters can store hundreds of readings. Most types of meters can save readings to your computer or smart phone. This makes it easy to look back at your record and see where you may have had problems.

Always bring your meter when you visit your provider. You and your provider can look at your blood sugar patterns together and make adjustments to your medicines, if needed.

You and your provider should set a target goal for your blood sugar level for different times of the day. If your blood sugar is higher than your goals for 3 straight days and you don't know why, call your provider.

References

American Diabetes Association. 6. Glycemic targets: standards of medical care in diabetes-2018. Diabetes Care. 2018;41(Suppl 1):S55-S64. PMID: 29222377 www.ncbi.nlm.nih.gov/pubmed/29222377.

American Diabetes Association. 4. Lifestyle management: standards of medical care in diabetes-2018. Diabetes Care. 2018;41(Suppl 1):S38-S50. PMID: 29222375 www.ncbi.nlm.nih.gov/pubmed/29222375.

Dungan KM. Management of type 2 diabetes mellitus. In: Jameson JL, De Groot LJ, de Kretser DM, et al, eds. Endocrinology: Adult and Pediatric. 7th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 48.

Retnakaran R, Zinman B. Treatment of type 1 diabetes mellitus in adults. In: Jameson JL, De Groot LJ, de Kretser DM, et al, eds. Endocrinology: Adult and Pediatric. 7th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 44.

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Review Date: 8/19/2018  

Reviewed By: Brent Wisse, MD, Associate Professor of Medicine, Division of Metabolism, Endocrinology & Nutrition, University of Washington School of Medicine, Seattle, WA. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.

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