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Question: From New Hampshire, USA: How do glucometers work? Answer: Most glucometers still work by spreading a drop of blood on a piece of filter paper impregnated with the enzyme glucose oxidase. This converts the blood glucose into gluconic acid and hydrogen peroxide. The change in acidity or hydrion concentration that occurs at this time changes the colour of an indicator. This in turn can be detected by a change in the intensity and wavelength of a reflected light beam. An alternative approach is to measure the change in hydrogen ion concentration or pH amperometrically (that is, by measuring the voltage change in a current passed through the blood sample). DOB Original posting 8 Apr 1999 Posted to Blood Tests and Insulin Injections

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			Jump to a new section --[ Getting Around ]-- Home Page What's New Privacy Policy Search CWD --[ People ]-- Family Support Network Adults with Diabetes Care Photos Chat Rooms Conferences Kids with Diabetes Parents Parent Humor Scholarships and Financial Aid Grandparents Humorous Tidbits Jobs Mailing Lists CWD Forums Poetry and Art Videos Polls Quilt for Life Surveys Blogs --[ Clinic ]-- Ask the Diabetes Team Alternate Site Testing Alternative Treatments Care Suggestions CWD Español Diabetes Basics Diabetes at School 504 Plans Diabetes Camps Diabetes Dictionary Insulin Pumps Nutrition Podcasts Presentations Products Product Marketplace Sports Studies Warning Signs --[ Sources ]-- News and Information Diabetes Advocacy Links to Other Web Sites Press Releases Regional Information Services Support Groups --[ Feedback ]-- About CWD Advertise Awards Contribute Your Experiences Disclaimer Letters to the Editor Logos and Linking Share our Brochures

Last Updated: Sun Jan 15 12:25:08 2006
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