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    What Is the Absolute Lymphocyte Count (ALC) Test?

    The Absolute Lymphocyte Count (ALC) test is a blood test designed to measure the number of lymphocytes in the bloodstream. Lymphocytes are a form of white blood cell that assist in fighting infections, viruses, and bacteria, and contribute to the body’s defence against diseases like cancer. They are also crucial in remembering pathogens (antigens), allowing the immune system to react more efficiently if the same pathogen is encountered again. This is why it is rare to contract the same illness, such as measles or chickenpox, more than once.

    The ALC test is typically performed as part of a full blood count (FBC), a standard procedure used to assess the health of your blood. Elevated lymphocyte levels may suggest infections such as mononucleosis, hepatitis, or tuberculosis, or more serious conditions like blood cancers (leukaemia or lymphoma) or autoimmune diseases. Conversely, low lymphocyte levels, referred to as lymphocytopenia, may be indicative of conditions like HIV, viral hepatitis, or disorders like lupus or severe combined immunodeficiency. Lymphocytopenia may also result from treatments that weaken the immune system, such as chemotherapy.

    The Absolute Lymphocyte Count test is an essential diagnostic tool for assessing immune system health and identifying a range of health conditions, enabling doctors to make informed decisions about care and treatment.

    Absolute Lymphocyte Count (ALC) Test Parameters

    The Absolute Lymphocyte Count test evaluates a single parameter – the number of lymphocytes in your blood. This is reported as either an absolute number or as a percentage of the total white blood cells (WBCs). Lymphocytes typically comprise about 20-40% of the total WBCs in a healthy individual. The total number of lymphocytes is calculated by multiplying the total WBC count by the percentage of lymphocytes in your blood. There are various types of lymphocytes, including T cells, B cells, and NK cells. T cells protect the body by attacking infected or abnormal cells, while B cells produce antibodies that target infections caused by viruses and bacteria. Depending on the illness or infection, the number of these lymphocyte subsets may increase.

    Absolute Lymphocyte Count (ALC) Test Preparation

    Here are the key details to consider when preparing for an Absolute Lymphocyte Count test: Prerequisites There is usually no need for fasting or specific preparation before undergoing an Absolute Lymphocyte Count test. Ideal Time to Have the Test The Absolute Lymphocyte Count test can be performed at any time of day. Who Should Have the Absolute Lymphocyte Count (ALC) Test? The test is recommended for individuals with frequent infections, those with a weakened immune system, people with chronic conditions, or those undergoing chemotherapy. It is also useful for individuals with immune-related conditions. Precautions Before Taking the Absolute Lymphocyte Count (ALC) Test No special precautions or steps are required before the test.

    Why Take the Absolute Lymphocyte Count (ALC) Test?

    The Absolute Lymphocyte Count test is a key tool in evaluating the function of your immune system. It is often recommended for the following:

    • Serious Illnesses: The ALC test is particularly valuable in assessing the immune system in critically ill individuals.

    • Predicting Recovery: It helps provide an indication of a person’s recovery potential following illness or surgery.

    • HIV Monitoring: ALC is an important test for tracking immune system health in patients diagnosed with HIV.

    • Sepsis Evaluation: In cases of severe infection, such as sepsis, ALC helps determine the infection's severity and supports treatment decisions.

    • Identifying Immune Issues: It is useful for identifying potential problems with the immune system. If ALC levels are low, further investigations may be necessary to determine the cause of illness.

    The test may also be recommended if symptoms linked to abnormal lymphocyte levels are present, including:

    • Swollen lymph nodes

    • Fever

    • Night sweats

    • Abdominal pain

    • Weakness or fatigue

    • Shortness of breath

    It is essential to monitor these symptoms, as they could signal underlying immune system issues.

    FAQs on Absolute Lymphocyte Count (ALC) Test in Noida

    The ALC test in Noida is priced at ₹250. This includes a smooth and easy home sample collection within 60 minutes of confirming your booking, with results available within 6 hours of sample collection.

    Yes, home sample collection for the Absolute Lymphocyte Count test is available in Noida through Orange Health Labs. A qualified eMedic will collect the sample from your home within 60 minutes of booking, depending on the available slots.

    The Absolute Lymphocyte Count test measures the number of lymphocytes in the blood, which are crucial to the immune system. This test helps in diagnosing infections, immune disorders, and other underlying medical conditions.

    In most cases, fasting is not required before having an Absolute Lymphocyte Count test. Nonetheless, it’s important to follow your doctor’s advice on preparation.

    Follow these steps to book an Absolute Lymphocyte Count test:

    • Search for the test: Visit the Orange Health website and select the Absolute Lymphocyte Count test.

    • Confirm your booking: Enter your address, select a time slot, and confirm your appointment.

    • Sample collection: A trained eMedic will collect the sample from your location.

    • Laboratory processing: The sample will be processed in an ICMR-certified and NABL-accredited laboratory.

    • Receive results: Your results will be delivered via email or WhatsApp within 6 hours of sample collection and can also be accessed via the Orange Health app.

    The standard range for Absolute Lymphocyte Count is from 1,000 to 3,000 cells per microlitre of blood.

    Once the Absolute Lymphocyte Count test is confirmed, an eMedic will collect the sample within 60 minutes of booking, and the results are generally ready within 6 hours after the sample has been collected.

    The frequency of the ALC test is determined by your health status and your doctor’s recommendations. Consult your doctor for advice specific to your situation.

    The Absolute Lymphocyte Count test evaluates a single factor – the total number of lymphocytes in your blood.

    Orange Health provides Absolute Lymphocyte Count test at home services in various locations in Noida, including DLF Phase 1, DLF Phase 2, DLF Phase 3, DLF Phase 4, DLF Phase 5, Sector 14, Sector 15, Sector 21, Sector 22, Sector 23, Sector 24, Sector 29, Sector 31, Sector 40, Sector 42, Sector 43, Sector 45, Sector 46, Sector 50, Sector 51, Sector 52, Sector 53, Sector 54, Sector 55, Sector 56.

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    References

    1. Cleveland Clinic. Lymphocytes: Function, Definition, Levels & Ranges.  Available from:  https://my.clevelandclinic.org/health/body/23342-lymphocytes
    2. Brihi JE, Pathak S. Normal and Abnormal Complete Blood Count with Differential.  Available from:  https://www.ncbi.nlm.nih.gov/books/NBK604207/
    3. Hamad H, Mangla A. Lymphocytosis [Internet]. PubMed. Treasure Island (FL): StatPearls Publishing  Available from:  https://www.ncbi.nlm.nih.gov/books/NBK549819/
    4. Ritter S. The absolute lymphocyte count (ALC) is a significant clue for immune deficiency.  Available from:  https://www.jacionline.org/article/S0091-6749(18)32090-6/fulltext