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    What is a Fasting Blood Sugar (FBS) Test?

    The Fasting Blood Sugar (FBS) test is performed after an 8-hour fast to measure glucose (sugar) levels in the blood. It is a vital test for detecting and tracking prediabetes and diabetes. Diabetes involves chronically high blood sugar due to inadequate insulin production or action. Prediabetes, an intermediary stage before diabetes, shows mildly elevated blood sugar levels (not high enough to be identified as diabetes). Additionally, the FBS test helps identify gestational diabetes in pregnant women, influenced by pregnancy hormones.

    The FBS test provides an accurate measure of how efficiently the body regulates blood glucose levels after fasting. It is essential for evaluating and managing diabetes and impaired glucose metabolism.

    If you are in Hyderabad and your doctor suspects diabetes, getting the FBS test done quickly is critical for timely intervention. Book your FBS test in Hyderabad today for prompt and effective management.

    Fasting Blood Sugar (FBS) Test Parameters

    Blood sugar, or glucose, is the primary sugar circulating in the bloodstream. The FBS test focuses on a single parameter: it measures blood sugar levels after fasting. This ensures the most precise baseline readings.

    High blood sugar levels can be caused by factors such as a family history of diabetes, an unhealthy diet, lack of physical activity, and excess body weight.

    Carbohydrates in the diet are the source of glucose. During digestion, these carbohydrates break down, and glucose is released into the bloodstream. The pancreas produces insulin, which lets glucose enter the body's cells and be used for energy. As cells absorb glucose, blood sugar levels decrease, keeping them regulated. In people with diabetes, the pancreas does not produce sufficient insulin, or the body does not respond to insulin properly, resulting in high blood sugar levels. Prolonged elevated sugar levels can damage blood vessels and nerves, leading to significant health complications.

    Fasting Blood Sugar (FBS) Test Preparation

    To get reliable results, prepare for an FBS test according to the precise criteria specified below:

    Prerequisites

    To get accurate blood sugar readings, you must not eat or drink anything except water for 8-12 hours before the FBS test. Food intake affects sugar levels, making fasting necessary for reliable results.

    Best Time to Get Tested

    The FBS test is usually scheduled in the morning before breakfast. This scheduling guarantees that the individual being tested has fasted overnight for proper test results.

    Who Should Get an FBS Test

    Individuals who are at risk due to obesity or a family history of diabetes or showing symptoms of diabetes (including excessive thirst, frequent urination, unexplained weight loss, and increased appetite) should take the FBS test. Besides diagnosing diabetes, the FBS test, along with the Postprandial Blood Sugar (PPBS) test, helps monitor the treatment progress in diabetic patients. It is also part of regular health check-ups to assess blood glucose levels and screen for gestational diabetes in pregnant women.

    Cautions Before Taking the FBS Test

    It is important to tell your doctor about all medications you are taking before undergoing the FBS test. Certain medications can impact blood sugar levels and may affect the test's accuracy.

    Why Take a Fasting Blood Sugar (FBS) Test?

    An FBS test is recommended in the following instances:

    • Routine Monitoring

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

    • Symptom Assessment and Risk Factor Evaluation

    If you have symptoms of diabetes like fatigue, unexplained weight loss, increased thirst, frequent urination, blurred vision, numbness or tingling in hands and feet, or non-healing sores, your doctor may order an FBS test. This test may also be indicated if you have risk factors such as a sedentary lifestyle, obesity, high blood pressure, age 45 or older, a history of stroke or heart disease, or a history of gestational diabetes.

    • Monitoring of Prediabetes

    For individuals with previously elevated glucose levels or prediabetes, an FBS test may be recommended. Regular testing determines if lifestyle changes are effectively treating prediabetes and avoiding diabetes.

    • Monitoring in Individuals with Diabetes

    Routine FBS testing is crucial for diabetics to track blood sugar levels, evaluate the success of treatments, and adjust medication doses if needed.

    • Screening During Pregnancy

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

    • Diagnosing Conditions Other Than Diabetes That Cause Low Glucose Levels

    The FBS test helps diagnose non-diabetic conditions that lead to hypoglycaemia, such as liver diseases (including viral hepatitis, cirrhosis, and liver cancer), chronic kidney disease, and hormonal disorders (such as reduced hormone production by the pituitary and adrenal glands). Prolonged fasting and diabetes medications can also cause low glucose levels.

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

    The FBS test can identify non-diabetic conditions that cause high blood glucose levels, such as acromegaly, hyperthyroidism, Cushing syndrome, and pancreatic disorders.

    Fasting Blood Sugar (FBS) Test Results & Interpretation

    The table below will help you understand your FBS test results:

    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, which occur when blood sugar levels fall below 70 mg/dL, can be caused by a variety of conditions including starvation, adrenal insufficiency (underactive adrenal glands), drinking excessive alcohol, an overdose of insulin, severe liver disease, hypopituitarism (underactive pituitary function), hypothyroidism (decreased thyroid function), insulinomas (tumours in the pancreas that produce insulin), and severe infections.

    Elevated blood glucose levels are commonly associated with diabetes but can stem from various other health issues, such as Cushing syndrome (excess cortisol hormone), acromegaly (excess growth hormone), acute stress (response to trauma, heart attack, and stroke for instance), hyperthyroidism (increased thyroid function), pancreatic cancer, and pancreatitis (inflammation of the pancreas).

    FAQs on Fasting Blood Sugar (FBS) Test in Hyderabad

    The FBS Test price is ₹ 99. This price covers the fastest home sample collection in 60 minutes of booking, and the reports are available in None hours.

    After a fasting period, the FBS test measures blood glucose levels, aiding in the diagnosis and ongoing management of conditions like prediabetes and diabetes.

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

    Yes, with Orange Health Labs, you can get tested conveniently at home, as we provide a complimentary home sample collection for the Sugar test at home in Hyderabad.

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

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

    • Confirm Your Booking : Choose the test, check the prerequisites, input your address details, and confirm the booking by selecting a suitable time slot for sample collection.

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

    • Lab Processing : The collected sample will be processed and examined at our NABL-accredited and ICMR-approved labs.

    • Receive Your Reports : Your reports will be sent to you via email, WhatsApp, or our app within 6 None hours of sample collection.

    Typically, fasting blood sugar levels range from 70 to 99 mg/dL.

    FBS is a simple and quick test, requiring only a few minutes for sample collection. Results are typically delivered within None hours after collecting the sample.

    The frequency of testing is determined by your doctor's recommendation and your current health status.

    The FBS test evaluates blood glucose levels post an 8-hour fasting duration.

    The FBS blood test requires fasting for at least 8 hours beforehand.

    Abstaining from eating ensures an accurate assessment of baseline blood sugar levels, free from the influence of recent meals.

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

    High blood sugar levels, known as hyperglycaemia, are frequently associated with diabetes and other health conditions.

    Hyperglycaemia symptoms include increased hunger, fatigue, frequent urination, blurred vision, and heightened thirst.

    Typically, the FBS test is done in the morning after fasting overnight.

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

    Unless given specific guidance by your doctor or nurse, continue with your regular medications before a Fasting Blood test.

    Without having to visit a physical lab, Orange Health provides the fastest FBS test services near you across Hyderabad at the convenience of your home. Localities include but are not limited to Banjara Hills, Jubilee Hills, Gachibowli, Madhapur, Hitech City, Kondapur, Begumpet, Somajiguda, Ameerpet, Panjagutta, Kukatpally, Miyapur, Manikonda, Secunderabad, Tarnaka, Abids, Koti, Mehdipatnam, Dilsukhnagar, Uppal, LB Nagar, Nallagandla, Nizampet, Attapur, Malkajgiri.

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