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    What is a Liver Function Test (LFT) Test?

    The liver is a vital organ located in the right upper quadrant of the abdomen, beneath the diaphragm. It aids in digestion, metabolism, and elimination of toxins from the body. The liver is also involved in glucose synthesis and storage and regulation of red blood cells. Liver Function tests (LFTs), also known as liver panel test, are blood tests that assess liver function by measuring the levels of various substances produced by the liver. These include proteins, enzymes, and metabolic byproducts.

    Getting an LFT test in Bangalore can help screen for various liver diseases. It can be done to check if the presenting symptoms are due to liver disease or damage. If liver disease is diagnosed, LFTs help to determine the severity of the disease. The test is useful for routine monitoring of existing liver disease and the response to ongoing treatment. LFTs are also performed to monitor the side effects of some medications known to affect the liver. LFT values can determine the presence of hepatitis (liver inflammation) and check whether it is related to alcohol intake or other causes (such as metabolic), impairment in liver function, or flow of bile (greenish-yellow fluid secreted by the liver), the site of damage (the liver itself or the bile ducts) and its extent.

    Liver Function Test (LFT) Test Parameters

    The Liver Function test measures a range of parameters, as listed below:


    • Total bilirubin

    • Indirect bilirubin

    • Direct bilirubin

    Indirect bilirubin is the water-insoluble bilirubin that enters the liver. The liver converts this to water-soluble direct bilirubin, which is moved out to the intestine for excretion. Total bilirubin comprises both direct and indirect bilirubin.

    Alanine Aminotransferase (ALT/SGPT)

    ALT is an enzyme found in muscles, heart, and kidneys but is mainly seen in the liver. High ALT levels may be a sign of liver inflammation, injury, or disease.

    Aspartate Aminotransferase (AST/SGOT)

    AST is also an enzyme associated with liver health. Increased AST levels may be a sign of liver damage, cirrhosis (liver scarring), or advanced liver disease.

    Alkaline Phosphatase (ALP)

    ALP is an enzyme found in organs such as the liver, bones, intestines, and kidneys. ALP assesses many medical conditions, including liver problems.

    Gamma Glutamyl Transferase (GGT)

    GGT is an enzyme found in the liver and bile ducts as well as other body tissues. High GGT levels may indicate liver or bile duct damage.

    AST/ALT Ratio

    The SGOT/SGPT ratio, or AST/ALT ratio, is often more informative than individual enzyme values in diagnosing liver disease.

    Total Protein

    The total protein test estimates the blood levels of two major proteins made by the liver, albumin and globulin. Fluctuations in protein levels may signify liver, kidney, or gastric problems.

    A/G Ratio

    Albumin is the major protein synthesized by the liver and helps transport substances like medicines and hormones throughout the body. Globulin helps transport nutrients and fight infections. The A/G ratio helps in diagnosing liver and kidney disease, and nutritional problems, as well as certain cancers, genetic disorders, and immune diseases.

    Liver Function Test (LFT) Test Preparation

    Before undergoing Liver Function test in Bangalore, it is important to bear in mind the following factors:

    • Prerequisites: The LFTs do not require any major preparation. Usually, the test does not involve any fasting. However, you may be advised by your doctor to fast for 10 to 12 hours before taking the test. Ask your healthcare provider if you must avoid any foods or medicines that may interfere with your test results.

    • The best time to get tested: The LFT test can be taken at any time during the day.

    • Eligibility for the LFT test: Individuals who may be eligible for an LFT test include those with symptoms of liver damage or disease. Those without symptoms but at high risk for liver damage due to factors such as obesity, diabetes, hepatitis from injury or infection, alcohol use, or a family history of liver disease, should also get tested. For individuals with liver disease, LFTs are done to monitor the condition and response to ongoing treatment.

    • Cautions before taking the LFT test: Before getting an LFT test at home, you are required to inform your doctor about any existing illnesses or medicines you may be taking that can affect your liver enzymes and protein levels.

    Why Take a Liver Function Test (LFT) Test?

    The LFT test provides valuable insights into liver function and overall health. Here are some reasons why you might need an LFT test:

    Routine Checkups: Your healthcare provider may include LFTs as part of your routine checkup. This screening helps to detect early signs of liver disease or dysfunction, allowing for prompt intervention and management.

    Symptoms of Liver Issues: Experiencing symptoms like nausea, lack of appetite, fatigue, or jaundice (yellowing of skin and eyes) could indicate liver problems. Other signs include abdominal swelling or pain, swelling in the legs, dark urine and/or light-coloured stool, or persistent itching. These symptoms necessitate LFTs to evaluate liver health and identify potential issues.

    High-Risk Factors: Certain factors increase your risk of liver damage, warranting regular testing even in the absence of symptoms. If you have a family history of liver disease, face challenges with alcohol use disorder (AUD), are obese, diabetic, or take medications known to affect liver function, you may need regular monitoring with LFTs. Additionally, individuals with hepatitis or a history of hepatitis from infection or injury require diligent screening due to the heightened risk of liver inflammation and damage.

    Management of Existing Conditions

    For those already diagnosed with liver disease, regular testing becomes essential for monitoring the progress of the condition and assessing the effectiveness of treatment. Whether managing hepatitis, fatty liver disease, or other liver disorders, routine testing helps healthcare providers adjust treatment plans to optimize liver health.

    Thus, LFTs enable early diagnosis, monitoring, and management of liver diseases.

    Liver Function Test (LFT) Test Results & Interpretation

    Understanding the results of the Liver Function test at home involves interpreting the levels of various parameters based on their normal range. Here's a breakdown of the normal range for each parameter of LFTs:

    ParameterNormal Range
    ALT<50 U/L
    AST17-49 U/L
    AST/ALT Ratio0.7-1.4
    ALP38-126 U/L
    GGT15-73 U/L
    Bilirubin (Total)0.2-1.3 mg/dL in adults 1.0-10.5 in neonates
    Direct Bilirubin0.0-0.3 mg/dL in adults 0.0-0.6 in neonates
    Indirect Bilirubin0.1-1.1 mg/dL in adults 0.6-10.5 in neonates
    Total Protein6.0-8.3 g/dL
    Albumin3.5-5.0 g/dL
    Globulin2.3-3.5 g/dL

    Any LFT results outside the normal range may be indicative of different liver conditions, such as hepatitis, liver damage, cirrhosis, or fatty liver disease. In general, abnormal LFT results may be suggestive of the following situations:

    • Impaired liver function either due to liver injury or damage.

    • Inflammation of the liver, known as hepatitis, results from factors such as alcohol use or infection.

    • Issues with bile ducts, which are crucial for transporting bile from the liver to the intestine.

    • Potential liver damage caused by medications.

    FAQs on Liver Function Test (LFT) Test in Bangalore

    The LFT test price is ₹ 700. The LFT Test price covers the fastest home sample collection, arriving within 60 minutes of your booking, with results ready in just 6 hours.

    LFTs are used to evaluate liver health by measuring various enzyme and protein levels. It helps detect liver diseases like hepatitis, assess liver damage due to factors like infections or alcohol, and monitor ongoing treatments.

    No, fasting is not required for the LFT test. However, certain foods and medications may interfere with the results, so it's essential to follow your doctor's instructions about foods or medicines to avoid before the test.

    Yes, Orange Health Labs offers free home sample collection for getting an LFT test at home. The sample can be collected within 60 minutes of booking, making it convenient for individuals in Bangalore.

    Listed below are the steps to book any blood test or health checkup on our platform

    Search for the test: Look for the Liver Function Test in Bangalore or at home and click on Orange Health’s listing.

    Review and Book: Select the test, check the test prerequisites, enter your address, and confirm the booking after picking a suitable time slot for sample collection.

    Sample Collection: Our skilled eMedic will arrive within your chosen time slot to collect the sample at your home.

    Lab Processing: The collected sample will be sent to and examined at our NABL accredited and ICMR approved labs.

    Receive Results: You will receive your reports via email or WhatsApp within 6 hours. They will also be available on our app.

    The LFT test reports are available within 6 hours

    The frequency of LFT tests depends on your doctor's recommendation and individual health condition. Your doctor will prescribe the appropriate testing schedule based on your needs.

    The LFT test includes parameters such as ALT, AST, ALP, total protein, albumin, globulin, total bilirubin, conjugated bilirubin (direct), unconjugated bilirubin (indirect), and GGT.

    The normal range for the LFT test varies for each parameter and is provided by Orange Health Labs based on standard medical guidelines.

    The 3 liver blood tests include the Bilirubin test, the Alanine Aminotransferase test, and the Albumin test.

    Without having to visit a physical lab, Orange Health provides the fastest LFT test services near you across Bangalore at the convenience of your home. Localities include but are not limited to Adugodi, Banashankari, Bannerghatta, Basavanagudi, Bellandur, BTM Layout, Chamrajpet, Cottonpet, CV Raman Nagar, Domlur, Electronic City, Frazer Town, Giri Nagar, Hebbal, Hennur, Hosur, HSR Layout, Jakkur, Jalahalli, Jaya Nagar, Kadugodi, Kammanahalli, Kengeri, Koramangala, Mahalakshmi Layout, Madiwala, Magadi Road, Malleshwaram, Marathahalli, Mathikere, Mysore Road, Nagarbhavi, Nandhini Layout, Old Airport Road, Peenya, RT Nagar, Rajaji Nagar, Rajarajeshwari Nagar, Sadashivnagar, Sahakara Nagar, Sanjay Nagar, Sarjapur, Seshadripuram, Shanthi Nagar, Shivaji Nagar, Sri Nagar, Tyagarajnagar, Uttarahalli, Vasanth Nagar, Vidyaranyapura, Vijaya Nagar, Whitefield, Yelahanka, Yeshwantpur.

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