How Does A Blood Sugar Test Work?

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Diabetes Test Strips

Tweet Blood glucose test strips (diabetes test strips) are a key component of blood glucose testing. These small disposable strips of plastic may look insignificant but they provide a very important role in helping people with diabetes to monitor and control their diabetes. In the vast majority of cases, each meter will take one type of test strip only. There are some blood glucose meters however that take blood ketone strips as well, to test for ketone levels. How do diabetes test strips work? When blood is placed onto the test strip, it reacts with a chemical called glucose oxidase producing gluconic acid from the glucose in the blood. At the other end of the test strip, the meter transfers a current to the test strip. The test strip has electric terminals which allow the meter to measure the current between the terminals. The current between the terminals changes depending on the level of gluconic acid that has been produced. The blood glucose meter then uses an algorithm to work out the blood glucose level based upon the difference in current. Some blood glucose test strips allow the reapplication of more blood to the same test strip if needed during the test. The amount of blo Continue reading >>

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Popular Questions

  1. TEACHER1220

    I went to a diabetes support group meeting yesterday and I was told by the dietician that 100 carbs. a day was as low as you should go, but she said you should not even go that low. I think you have to try different amounts and find out what works for you. You also have to take into consideration your stress level, amount of sleep, time between your meals, exercise, etc. that can effect your bs numbers. Some days I'll eat the same thing for a meal, but my numbers are completely different. My morning readings are always more than my night readings, by 30 sometimes!

  2. TEACHER1220

    Thanks for this thread, I have read most of it and I have conformation if what I have found. My dietician said to eat 130-150 gr. carbs everyday. I can't eat that much or my bs is way too high. I've been shooting for 60-80 per day and my bs has been much lower. I eat limited carb foods, mostly vegetables. Ive been a diabetic 20 years and I feel like I'm finally getting the advice I need to live (but it's not coming from my endocrinologist or dietician). My question is what is the lowest carbs you should eat each day?


    Try Team KETO. They are a great support group for those of us eating low carb, high fat.

    current weight: 309.6






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