I get different readings from each hand. Which one is correct?
Frustrating, right?! Here are three possibilities: 1) Blood sugar is always shifting. Hormones that help keep blood sugar stable are constantly being released in varying amounts as you digest foods and go about your day. 2) Your test strips long for retirement. Keep strips in their original containers; store in a cool, dry place; mind their expiration date; and double-check that the lot numbers on your meter and teststrip container match. 3) Your digits need attention. Unclean fingers, squeezing your finger too hard, and not having a large enough sample size can lower test accuracy. 4) Your glucose meter isn’t spot-on. Most meter readings can be 15 percent off from your true blood glucose and still meet FDA standards. A reading of 100 mg/dL could mean your blood sugar is between 85-115 mg/dL, while a reading of 240 mg/ dL could indicate an actual range of 204-276 mg/dL. If your readings continue to vary dramatically, replace your meter or have it checked by a diabetes educator.