A Fasting Blood Sugar (FBS) Test is a simple and important test that helps measure the level of glucose in your blood after fasting for several hours. It is mainly used to check how well your body controls blood sugar and to detect early signs of diabetes or prediabetes.
What is a Fasting Blood Sugar Test?
The fasting blood sugar test measures glucose levels in your blood after you have not eaten or drunk anything (except water) for about 8 to 10 hours. Since eating can temporarily raise blood sugar, fasting ensures the test shows your natural sugar level. The test involves collecting a small blood sample, and the results are usually available within a few hours.
Why is the Fasting Blood Sugar Test Important?
This test helps doctors understand how your body uses insulin and manages sugar. It is an important step in diagnosing diabetes or identifying prediabetes. Regular testing can help you take early action through diet, exercise, or medical advice to prevent long-term health issues.
Abnormal results may suggest different conditions:
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High blood sugar (Hyperglycemia): May point to diabetes or insulin resistance.
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Low blood sugar (Hypoglycemia): Could be linked to long fasting, certain medicines, or other health issues.
Preparation Before the Test
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Do not eat or drink anything except water for 8–10 hours before the test.
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Avoid heavy exercise or stress before the test.
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Let your healthcare provider know about any medicines you are taking.
Understanding Your Results
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Normal: 70–100 mg/dL
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Prediabetes: 100–125 mg/dL
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Diabetes: 126 mg/dL or higher
Benefits of Regular Testing
Checking your fasting blood sugar regularly helps detect early changes in blood sugar levels. It allows you to take preventive steps before any serious problems develop. The test is quick, simple, and gives valuable insight into your overall health.
Final Thoughts
The fasting blood sugar test is an essential part of routine health check-ups. It provides a clear picture of how your body manages glucose and helps you take better control of your health. Regular monitoring and healthy lifestyle habits can help maintain balanced blood sugar levels and prevent complications in the future.
