Over the last few weeks I have noticed BS readings in the 90's to low 120's when I test my Blood. At first I thought I must be doing something right, but now I am wondering if my Glucose meter is working properly. Do glucose meters last only so long? Do they become less accurate within so many months? Should I have a backup meter to compare results? My meter is a One Touch Ultra mini that I have been using four about 4 months.
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