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    What is Activated Partial Thromboplastin Time (aPTT) Test?

    The Activated Partial Thromboplastin Time (aPTT) test is a blood test that measures the time taken for blood to clot. The aPTT test checks a specific group of clotting factors, showing how much of these factors you have and how well they function.

    When you get a cut or injury, your body uses special proteins called clotting factors to stop the bleeding. The aPTT test is used to help find the cause of unexplained bleeding or clotting issues. If your blood clots too slowly, you may have a bleeding disorder, such as haemophilia, which is a condition causing severe blood loss. However, if your blood clots too quickly, it can form clots that block blood flow, leading to dangerous conditions such as heart attacks or strokes. It is also used to monitor the use of certain medications, such as heparin, a blood thinner. The aPTT test is often done alongside other tests that assess clotting factors and how well they all function together.

    Overall, the aPTT test helps doctors determine how well your blood is able to clot, which is an essential mechanism to control bleeding and identify abnormal conditions.

    Activated Partial Thromboplastin Time (aPTT) Test Parameters

    The aPTT test primarily measures the time it takes for your blood to clot, focusing on specific clotting factors in the blood. It evaluates factors such as VIII, IX, XI, and XII, as well as fibrinogen.

    The test is called "activated", because a special substance is added to your blood sample to start the clotting process.

    If the aPTT result is higher than normal, it may indicate a problem with the clotting factors. To determine the cause, a mixing study may be performed, where your blood is mixed with normal plasma. If mixing corrects the prolonged aPTT time, it suggests a deficiency in one or more clotting factors. If it does not correct, there may be an inhibitor affecting the clotting process, which requires further investigation.

    Activated Partial Thromboplastin Time (aPTT) Test Preparation

    Consider the following before scheduling an APTT test in Bangalore:

    • Prerequisites

    You do not have to fast before undergoing an APTT test.

    • Best Time to Get Tested

    This test can be scheduled at any time of day.

    • Who Should Get This Test?

    This test is recommended for those with unexplained bleeding, clotting issues, autoimmune diseases, liver disease, frequent miscarriages, or for monitoring heparin therapy.

    • Cautions Before Taking This Test

    No specific preparation is usually needed before the APTT test. However, consult your doctor before undergoing the test to ensure it is appropriate for your situation.

    Why Take the Activated Partial Thromboplastin Time (aPTT) Test?

    An aPTT test, or Activated Partial Thromboplastin Time test, assesses how well your blood clots by measuring specific proteins called clotting factors. This test is helpful if you have unexplained bruising or bleeding, as it can identify if your body has problems producing clotting factors or the clotting factors are not functioning correctly. It can also help explain why you might be getting blood clots, which can sometimes happen because of problems with the immune system where the body attacks its own cells.

    If you are taking a blood-thinning medicine, the aPTT test is important for making sure the medication is working properly and that you are taking the right dose.

    The test is also done before surgeries for certain patients to check if they might have any risk of excessive bleeding during or after the procedure. If you have liver disease, this test can show if your liver is making enough clotting factors. Additionally, the aPTT test may be helpful if you have had multiple miscarriages or if doctors suspect you have a bleeding or clotting disorder.

    FAQs on Activated Partial Thromboplastin Time (aPTT) Test in Bangalore

    The aPTT test price is ₹ 550. This price covers the fastest home sample collection within 60 minutes of test confirmation, with results available in 6 hours.

    Yes, Orange Health Labs provides home sample collection services for the aPTT test in Bangalore. Your sample can be collected at home within 60 minutes of booking, subject to slot availability.

    An aPTT test measures blood clotting time to identify clotting disorders, monitor heparin therapy, assess bleeding risks before surgery, and evaluate conditions like liver disease and autoimmune disorders. 2

    No, you are not required to fast for an aPTT test.

    Follow these steps to book an aPTT blood test or health checkup through our platform:

    • Find the Test : Search for the Activated Partial Thromboplastin Time test in Bangalore and visit Orange Health’s page from the list.

    • Review and Verify : Select the aPTT test, review any prerequisites, enter your location, and complete the booking by choosing a convenient time for home sample collection.

    • Sample Collection : An eMedic will come to your location to collect the home sample at the scheduled time.

    • Laboratory Processing : The home sample will be sent to our ICMR-approved and NABL-accredited laboratory for analysis.

    • Receive Results : The reports of your aPTT test at home will be delivered via email or WhatsApp within 6 hours and can also be accessed through our app.

    The normal levels for the aPTT test typically range from 17.8 to 39.8 seconds.

    Once you book the aPTT test, Orange Health Labs will send an eMedic to collect your home sample within 60 minutes. The home collection process usually takes just a few minutes. You can expect to receive your reports online within 6 hours. 1

    The frequency of the aPTT test depends on your doctor's assessment of your health condition and your risk factors. Follow your doctor’s orders on how often to have the test.

    The aPTT test measures only one parameter: the time it takes for blood to clot.

    Orange Health offers the aPTT test in Bangalore, delivered conveniently to your home without needing a physical laboratory visit. Localities in Bangalore 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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    References

    1. MedlinePlus. Partial Thromboplastin Time (PTT) Test: MedlinePlus Lab Test Information [Internet].  Available from:  https://medlineplus.gov/lab-tests/partial-thromboplastin-time-ptt-test/
    2. Blood Clotting Too Quickly or Too Slowly? [Internet].  Available from:  https://my.clevelandclinic.org/health/diagnostics/25101-partial-thromboplastin-time
    3. Activated partial thromboplastin time | Pathology Tests Explained [Internet].  Available from:  https://www.pathologytestsexplained.org.au/ptests-pro.php?q=Activated+partial+thromboplastin+time#what-is-being-tested
    4. Zaidi SRH, Rout P. Interpretation of Blood Clotting Studies and Values (PT, PTT, aPTT, INR, Anti-Factor Xa, D-Dimer) [Internet].  Available from:  https://www.ncbi.nlm.nih.gov/books/NBK604215/