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    What is Absolute Lymphocyte Count (ALC) Test?

    The Absolute Lymphocyte Count test is a blood test that measures the number of lymphocytes in your bloodstream. Lymphocytes are a component of white blood cells (WBCs) and help fight infections, viruses, and bacteria and assist in the body's response to diseases like cancer. Lymphocytes are also responsible for remembering pathogens (antigens), which allows the immune system to respond more quickly if the same pathogen is encountered again. This is why you do not usually get the same illness, like measles or chickenpox, more than once.

    The ALC test is often performed as part of a complete blood count (CBC), a routine test that assesses your blood health. 1 High lymphocyte levels may indicate infections, such as mononucleosis, hepatitis, or tuberculosis, or more severe conditions like blood cancers (leukaemia or lymphoma) or autoimmune diseases.

    Conversely, low levels of lymphocytes, known as lymphocytopenia, can be a sign of an underlying problem such as HIV, viral hepatitis, or conditions like lupus or severe combined immunodeficiency. Lymphocytopenia can also result from treatments that weaken the immune system, like chemotherapy.

    The Absolute Lymphocyte Count test is a valuable tool for assessing immune function and diagnosing various health conditions, helping doctors make informed decisions about treatment and care.

    Absolute Lymphocyte Count (ALC) Test Parameters

    The Absolute Lymphocyte Count test measures only one parameter – the number of lymphocytes in your blood. This is expressed as either an absolute number or as a percentage of total WBCs. 1,2 Lymphocytes generally make up about 20-40% of the total WBCs in a healthy individual. The total number of lymphocytes is calculated using a formula where the total WBC count in your blood is multiplied by the percentage of lymphocytes circulating in your blood. There are different types of lymphocytes, including T cells, B cells, and NK cells. T cells help protect your body by attacking infected or abnormal cells. B cells produce antibodies that fight infections caused by viruses and bacteria. The number of these lymphocyte subsets may increase depending on the cause of an illness or infection.

    Absolute Lymphocyte Count (ALC) Test Preparation

    When getting ready to take an Absolute Lymphocyte Count test, consider the following important details:

    Prerequisites:

    Typically, there is no need for fasting or any specific preparation before undergoing an Absolute Lymphocyte Count test.

    Best Time to Get Tested:

    The Absolute Lymphocyte Count test can be performed at any time of the day.

    Who Should Get an Absolute Lymphocyte Count (ALC) test?

    An Absolute Lymphocyte Count test is useful for individuals experiencing frequent infections, those with weakened immunity, patients with chronic illnesses, or those undergoing treatments like chemotherapy. It is also beneficial for people managing immune-related conditions.

    Cautions Before Taking the Absolute Lymphocyte Count (ALC) Test

    There are no special precautions or steps required before the Absolute Lymphocyte Count test.

    Why Take the Absolute Lymphocyte Count (ALC) Test?

    The Absolute Lymphocyte Count test helps assess the function of your immune system. This test is advised for:

    • Serious Illnesses : The ALC test helps evaluate the immune system, particularly in critically ill individuals.

    • Predicting Recovery : It provides insights into a person's potential recovery from an illness or surgery.

    • HIV Monitoring : ALC is useful for tracking immune system health in patients with HIV.

    • Sepsis Evaluation : For severe infections like sepsis, ALC helps assess the severity and supports treatment decisions.

    • Identifying Immune Issues : It can be done in individuals suspected to have immune system problems. Low ALC levels will prompt further investigations to find the cause of the illness.

    The ALC test may also be ordered if symptoms related to abnormal lymphocyte levels are present, such as:

    • Swollen lymph nodes

    • Fever

    • Night sweats

    • Abdominal pain

    • Weakness or fatigue

    • Difficulty breathing

    It is important to monitor these symptoms, as they could indicate underlying issues with the immune system.

    FAQs on Absolute Lymphocyte Count (ALC) Test in Bangalore

    The cost of an ALC test in Bangalore is ₹250. It includes hassle-free home sample collection within 60 minutes of booking confirmation, and results are delivered within 3 hours after sample collection.

    Yes, Orange Health Labs provides sample collection for the Absolute Lymphocyte Count test at home in Bangalore. A qualified eMedic will arrive to collect the sample within 60 minutes of booking, based on the available slots.

    The Absolute Lymphocyte Count test measures lymphocyte levels in the blood, a critical component of the immune system. It helps diagnose infections, immune system disorders, and other underlying conditions.

    Fasting is typically not necessary before taking an Absolute Lymphocyte Count test. However, it’s always best to follow your doctor’s instructions for preparation.

    To book the Absolute Lymphocyte Count test, follow these steps:

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

    • Confirm the booking : Provide your address, select your time slot, and finalise the appointment.

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

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

    • Receive results : Reports will be sent to you through email or WhatsApp within 3 hours after collecting the sample, and can also be accessed via the Orange Health app.

    The normal levels of Absolute Lymphocyte Count are in the range of 1,000 and 3,000 cells per microliter of blood.

    Once your Absolute Lymphocyte Count test is booked, an eMedic will collect the sample within 60 minutes of booking, and results are typically provided within 3 hours after the sample is collected.

    The frequency of the ALC test depends on your health status and your doctor’s advice. Consult your doctor for personalised guidance.

    The Absolute Lymphocyte Count test measures only one parameter – the total number of lymphocytes circulating in your blood.

    Orange Health provides Absolute Lymphocyte Count test at home services in various locations in Bangalore, including Adugodi, Banashankari, Bannerghatta, Basavanagudi, Bellandur, BTM Layout, Chamrajpet, Cottonpet, CV Raman Nagar, Frazer Town, Giri Nagar, Hebbal, Domlur, Hennur, Hosur, HSR Layout, Electronic City, 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, and Yeshwantpur.

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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