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    What is a Fasting Blood Sugar (FBS) Test?

    The Fasting Blood Sugar (FBS) test, conducted after an 8-hour fast, measures blood glucose levels, essential for diagnosing and monitoring diabetes and prediabetes. Diabetes results from consistently high blood sugar due to insufficient insulin or its improper utilisation. Prediabetes, or borderline diabetes, features blood sugar levels higher than normal but not yet diabetic. This test is also used to detect gestational diabetes, a condition caused by pregnancy hormones in expectant mothers.

    The FBS test accurately measures the body’s regulation of blood glucose levels without recent food intake, aiding in the diagnosis and management of diabetes and impaired glucose metabolism.

    People living in Noida should get the FBS test done as soon as possible if their doctor suspects diabetes. This will allow for prompt treatment planning. Plan an FBS test in Noida today to ensure timely attention and treatment.

    Fasting Blood Sugar (FBS) Test Parameters

    The primary type of sugar present in the blood is glucose (also known as blood sugar). The FBS test has only one parameter: it measures fasting blood sugar levels. This is considered the most accurate baseline reading.

    Several factors can lead to elevated blood sugar, including unhealthy eating habits, a sedentary lifestyle, obesity, and a family history of diabetes.

    Dietary carbohydrates provide glucose, which is released into the bloodstream during digestion after breakdown. The pancreas secretes insulin, which facilitates glucose uptake by body cells for energy production. When glucose is taken up by the cells, blood sugar levels drop, keeping them under control. In diabetes, either the pancreas does not produce enough insulin, or the body does not absorb insulin in a proper manner, leading to high blood sugar levels. Persistently high sugar levels can damage blood vessels and nerves over time, causing serious health issues.

    Fasting Blood Sugar (FBS) Test Preparation

    Adherence to specified recommendations is necessary when preparing for an FBS test in order to guarantee reliable findings. They are listed below:


    It is essential to refrain from eating or drinking anything other than water for 8-12 hours prior to the FBS test. Fasting is important as food impacts sugar levels, allowing for a more accurate evaluation of blood sugar levels.

    Best Time to Get Tested

    The FBS test is usually scheduled in the morning before breakfast. This timing ensures that the individual has undergone fasting overnight, ensuring accurate test results.

    Who Should Get an FBS Test

    People with risk factors like obesity or a family history of diabetes or experiencing diabetes symptoms (such as increased thirst, frequent urination, unexplained weight loss, and increased hunger) should consider the FBS test. This test screens for diabetes and, together with the Postprandial Blood Sugar (PPBS) test, monitors treatment success in diabetes patients. It is also conducted during routine health checks to monitor blood glucose levels and to screen for gestational diabetes in pregnant women.

    Cautions Before Taking the FBS Test

    Informing your doctor about any medications you are on is crucial before having the FBS test. Certain medications can interfere with blood sugar levels, potentially impacting the test's accuracy.

    Why Take a Fasting Blood Sugar (FBS) Test?

    An FBS test is recommended in the following instances:

    • Symptom Assessment and Risk Factor Evaluation

    If you experience diabetes symptoms such as increased thirst, frequent urination, blurred vision, fatigue, unexplained weight loss, numbness or tingling in hands and feet, or sores that do not heal, your doctor might order an FBS test. The test may also be recommended if you have risk factors like being 45 or older, obesity, high blood pressure, a sedentary lifestyle, a history of stroke or heart disease, or a previous history of gestational diabetes.

    • Routine Monitoring

    The FBS test is often part of routine monitoring of blood glucose levels, included in annual physical check-ups to track changes in blood sugar over time.

    • Monitoring of Prediabetes

    An FBS test may be ordered for individuals with previously elevated glucose levels or prediabetes. Regular testing helps to assess if lifestyle changes are effectively improving prediabetes and preventing diabetes.

    • Screening During Pregnancy

    FBS testing is done between the 24th and 28th weeks of pregnancy to screen for gestational diabetes as part of a Glucose Tolerance test, ensuring pregnancy hormones are not adversely affecting blood sugar levels.

    • Monitoring in Individuals with Diabetes

    For those with diabetes, regular FBS testing is essential to monitor blood sugar levels, assess treatment efficacy, and adjust doses of medication as needed.

    • Diagnosing Conditions Other Than Diabetes That Cause Low Glucose Levels

    The FBS test can identify conditions other than diabetes that result in hypoglycaemia, such as chronic kidney disease, hormonal imbalances (such as reduced hormone production by the pituitary and adrenal glands), and liver diseases (like viral hepatitis, liver cancer, and cirrhosis). Low glucose levels can also be caused by diabetes medications and prolonged fasting.

    • Diagnosing Conditions Other Than Diabetes That Can Cause High Blood Glucose Levels

    The FBS test is also useful for diagnosing non-diabetic conditions that elevate blood glucose levels, such as acromegaly, hyperthyroidism, Cushing syndrome, and pancreatic disorders.

    Fasting Blood Sugar (FBS) Test Results & Interpretation

    The outcomes from the FBS test can be analysed according to the following table:

    Fasting Blood Sugar Level Normal RangeInterpretation
    70 – 99 mg/dLNormal fasting blood sugar level
    100 – 125 mg/dLIndicates prediabetes; blood sugar levels are higher than normal but not high enough to classify as diabetes
    126 mg/dL or above, on more than one occasionIndicates high blood sugar, the main sign of diabetes

    Interpretation of Abnormal Results

    Low blood glucose levels, defined as blood sugar levels below 70 mg/dL, can stem from various causes, such as adrenal insufficiency (underactive adrenal glands), an overdose of insulin, starvation, drinking excessive alcohol, severe liver disease, hypopituitarism (underactive pituitary function), hypothyroidism (low thyroid function), severe infections, and insulinomas (tumours in the pancreas that produce insulin).

    Elevated blood glucose levels, often associated with diabetes, can also arise from a range of other diseases and conditions, such as acromegaly (excess growth hormone), acute stress (response to trauma, heart attack, and stroke for instance), Cushing syndrome (excess cortisol hormone), hyperthyroidism (increased thyroid function), pancreatitis (inflammation of the pancreas), and pancreatic cancer.

    FAQs on Fasting Blood Sugar (FBS) Test in Noida

    The FBS Test price is ₹ 100. This fee includes the fastest home sample collection within 60 minutes of booking, and the reports are available online in None hours.

    By measuring blood glucose levels after fasting, the FBS test helps diagnose and track conditions like prediabetes and diabetes.

    Yes, fasting for a minimum of 8 to 12 hours is compulsory before undergoing the Sugar test at home.

    Yes, Orange Health Labs allows you to get tested from the comfort of your home by offering home sample collection for the Sugar test at home in Noida.

    Follow these steps to book any blood test or health checkup on our platform:

    • Find the Test : Search for the FBS test in Noida or at home, then select Orange Health’s page.

    • Select and Confirm : Pick the test, review the prerequisites, provide your address details, and confirm the booking by selecting a suitable time slot for sample collection.

    • Sample Collection : Our skilled eMedic will visit within the chosen time slot for the sugar test home collection.

    • Lab Examination : The collected sample will undergo examination at our NABL-accredited and ICMR-approved labs.

    • Receive Reports : You will receive your reports via email, WhatsApp, or our app within None hours of sample collection.

    Typically, fasting blood sugar levels are between 70 and 99 mg/dL.

    FBS is an efficient and rapid test, completed in just a few minutes during sample collection. Results are typically available within None hours of collecting the sample.

    The frequency of testing is guided by your doctor's recommendations and your individual health needs.

    After fasting for at least 8 hours, the FBS test quantifies glucose levels in the bloodstream.

    Prior to the FBS blood test, it is essential to fast for at least 8 hours.

    By fasting, baseline blood sugar levels can be accurately measured, avoiding any interference from recent eating.

    Yes, you can drink water before taking the FBS test.

    Elevated blood sugar levels, termed hyperglycaemia, are typically associated with diabetes and other health conditions.

    Symptoms of hyperglycaemia include frequent urination, increased hunger, blurred vision, heightened thirst, and fatigue.

    Morning is the usual time for performing the FBS test, following an overnight fast.

    Blood glucose tests are commonly utilised for the diagnosis and monitoring of diabetes and prediabetes. They are also used to identify other medical conditions that cause hypoglycaemia or hyperglycaemia.

    Unless directed otherwise by your doctor or nurse, maintain your usual medication regimen before undergoing a Fasting Blood test.

    Without having to visit a physical lab, Orange Health provides the fastest FBS test services near you across Noida at the convenience of your home. Localities include but are not limited to Sector 1, Sector 15, Sector 18, Sector 26, Sector 37, Sector 50, Sector 62, Sector 76, Sector 93, Sector 100, Sector 104, Sector 110, Sector 120, Sector 128, Sector 137, Sector 150, Sector 168, Sector 71, Sector 63, Sector 22, Sector 41, Sector 108, Sector 47, Sector 121, Sector 45.

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