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    What Is the Absolute Lymphocyte Count (ALC) Test?

    The Absolute Lymphocyte Count test is a blood test used to measure the number of lymphocytes in the bloodstream. Lymphocytes are a form of white blood cell that help defend the body against infections, viruses, and bacteria, and also play a role in the immune system’s response to conditions such as cancer. They are responsible for remembering pathogens (antigens), which enables a faster immune response if the same pathogen is encountered again, which is why we typically do not get the same illness, such as measles or chickenpox, more than once.

    This test is often carried out as part of a full blood count (FBC), a routine test that monitors your blood health. High lymphocyte levels could indicate the presence of infections, like mononucleosis, hepatitis, or tuberculosis, or more serious conditions, such as blood cancers (leukaemia or lymphoma) or autoimmune disorders.

    On the other hand, low lymphocyte levels, known as lymphocytopenia, may point to underlying issues such as HIV, viral hepatitis, or diseases like lupus or severe combined immunodeficiency. Lymphocytopenia may also occur as a result of treatments that suppress the immune system, such as chemotherapy.

    The Absolute Lymphocyte Count test is an important tool for evaluating immune function and diagnosing a variety of health conditions, helping doctors make well-informed decisions regarding treatment and care.

    Absolute Lymphocyte Count (ALC) Test Parameters

    The Absolute Lymphocyte Count test measures one specific factor – the number of lymphocytes in your blood. This value is presented either as an absolute number or as a percentage of the total white blood cells (WBCs). Lymphocytes normally account for 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 circulating in the bloodstream. Lymphocytes include different types, such as T cells, B cells, and NK cells. T cells defend the body by attacking infected or abnormal cells, while B cells generate antibodies to fight infections caused by viruses and bacteria. The levels of these lymphocyte subsets may increase depending on the specific cause of an infection or illness.

    Absolute Lymphocyte Count (ALC) Test Preparation

    When preparing for an Absolute Lymphocyte Count test, keep the following points in mind: Prerequisites Typically, no fasting or special preparation is required before taking the Absolute Lymphocyte Count test. Best Time for Testing The Absolute Lymphocyte Count test can be performed at any time of day. Who Should Consider the Absolute Lymphocyte Count (ALC) Test? This test is particularly useful for people with frequent infections, weakened immunity, chronic health conditions, or those undergoing treatments like chemotherapy. It is also valuable for individuals with immune-related conditions. Precautions Prior to the Absolute Lymphocyte Count (ALC) Test No special precautions or preparation steps are necessary before the test.

    Why Take the Absolute Lymphocyte Count (ALC) Test?

    The Absolute Lymphocyte Count test helps evaluate how well your immune system is functioning. It is often recommended for:

    • Serious Illnesses: The ALC test is essential in assessing the immune function, particularly in critically ill patients.

    • Predicting Recovery: It provides insights into the likelihood of recovery following illness or surgery.

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

    • Sepsis Evaluation: In cases of severe infections like sepsis, the ALC test helps gauge the infection’s severity and informs treatment decisions.

    • Identifying Immune Issues: The test may be used for individuals suspected of having immune system problems. Low ALC levels can lead to further investigations to pinpoint the cause of the illness.

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

    • Swollen lymph nodes

    • Fever

    • Night sweats

    • Abdominal pain

    • Weakness or fatigue

    • Difficulty breathing

    Monitoring these symptoms is important, as they may suggest immune system-related concerns.

    FAQs on Absolute Lymphocyte Count (ALC) Test in Delhi

    The ALC test in Delhi costs ₹250. The price includes a convenient home sample collection, which will be completed within 60 minutes of confirming your booking. Your results will be delivered within 6 hours after the sample is collected.

    Yes, Orange Health Labs offers home collection for the Absolute Lymphocyte Count test in Delhi. A trained eMedic will come to collect your sample within 60 minutes of booking, based on slot availability.

    The Absolute Lymphocyte Count test assesses the levels of lymphocytes in the blood, an essential part of the immune system. It plays a role in diagnosing infections, immune system diseases, and other underlying conditions.

    Before an Absolute Lymphocyte Count test, fasting is usually not necessary. However, it is recommended to adhere to any preparation instructions given by your doctor.

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

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

    • Confirm your appointment: Provide your address, choose your preferred time slot, and confirm the booking.

    • Sample collection: A certified eMedic will come to your address to collect the sample.

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

    • Receive results: Your results will be sent via email or WhatsApp within 6 hours of the sample collection, and will also be accessible on the Orange Health app.

    Normal Absolute Lymphocyte Count levels are usually between 1,000 and 3,000 cells per microlitre of blood.

    Following your Absolute Lymphocyte Count test booking, an eMedic will come to collect the sample within 60 minutes, and the results are typically provided within 6 hours after the sample is taken.

    The need for the ALC test will depend on your overall health and your doctor’s professional advice. For tailored guidance, consult with your doctor.

    The Absolute Lymphocyte Count test measures only one aspect: the total count of lymphocytes in your blood.

    Orange Health provides Absolute Lymphocyte Count test at home services in various locations in Delhi, including Chandni Chowk, Connaught Place, Defence Colony, Dwarka, Greater Kailash, Green Park, Hauz Khas, Janakpuri, Rajouri Garden, Rohini, Safdarjung Enclave, Shahdara, South Extension, Kalkaji, Karol Bagh, Lajpat Nagar, Malviya Nagar, Mayur Vihar, Nehru Place, Preet Vihar, and Vasant Kunj.

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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