Written by: Deepa Sarkar
15 June 2026
Understanding your blood glucose readings can allow you to make educated choices about managing your diabetes.
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A glucometer can determine the amount of glucose (sugar) circulating in your bloodstream by reading this value in milligrams of glucose per deciliter (mg/dL).
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You should always note whether your glucose level is: – A fasting test (before eating) – A pre-meal test (before your meal) – 2 hours after eating a meal – At bedtime This timing information is important because it can affect the way your glucose result can be interpreted.
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Typical fasting glucose levels for adults are: – Normal range: 70-99 mg/dL – Prediabetes: 100-125 mg/dL – Diabetes: greater than or equal to 126 mg/dL on 2 or more occasions.
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If your blood sugar test result shows a number less than 70 mg/dL, you may be experiencing hypoglycemia or low blood sugar. Hypoglycemia can have the following symptoms: – Sweating – Trembling/shakiness – Dizziness – Starvation
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Just because the last test was abnormal doesn't mean that you've always had an abnormal reading. You must track your blood sugars on a daily basis and look for trends over time.
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Write down in a notebook: – The date and time – Your blood sugar level – What you ate – Any physical activity/exercise done – Your medications Your physician can use this information in determining how well you are managing your diabetes.
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Using a glucometer isn't only about the number on the meter; it includes knowing when the test was performed, maintaining records , and making necessary adjustments to your diabetes management plan.
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